Reaching remission is a major milestone, but it isn’t the end of your cancer care — it’s the start of a new phase called survivorship. This involves a structured follow-up plan covering surveillance for recurrence, management of late and long-term treatment effects, emotional and psychosocial support, and general health monitoring. The American Society of Clinical Oncology (ASCO) recommends every patient receive a formal Survivorship Care Plan at the end of active treatment, outlining exactly what comes next. An oncologist can help build a plan tailored to your specific diagnosis and treatment history. Just finished active treatment?  Consult Dr. Namratha Sai Reddy to build a personalised survivorship care plan covering surveillance, side-effect management, and long-term wellbeing. Key Takeaways When should survivorship planning begin? Ideally, survivorship planning should begin as soon as active treatment ends, not months later. If you’ve completed treatment and haven’t received a written survivorship care plan, ask your oncology team for one at your next visit. What Does “Remission” Actually Mean? Remission means that signs and symptoms of cancer have decreased or disappeared on available testing. In many cases this is described as complete remission, meaning no detectable disease on standard scans and blood tests. It’s important to understand that remission is not always the same as “cured”, some cancers can recur, sometimes years later, which is precisely why structured follow-up remains essential even when you feel completely well. Is Survivorship Care Really a Separate Phase of Treatment? Yes. Survivorship medicine has been formally recognised as a distinct area of cancer care for nearly two decades. The concept was formalised by the Institute of Medicine’s landmark 2006 report, which highlighted the risks of patients being“lost in transition” between active treatment and long-term follow-up. That report outlined four key pillars of survivorship care: preventing recurrence and new cancers, surveillance for recurrence and late effects, intervening on the consequences of treatment, and coordinating care between oncology specialists and primary care providers. Today, survivorship care plans are considered standard of care across major cancer centres. How Many People Are Living as Cancer Survivors Today? The survivor population has grown dramatically as treatments have improved. As of 2026, it’s estimated there are over 20 million cancer survivors in the United States, up from around 15.5 million in 2016, and this number is projected to keep climbing. This growth reflects genuinely encouraging progress: the overall five-year relative survival rate for all cancers combined has reached a record 70%, and overall cancer mortality has declined by 34% since its peak in the early 1990s. As more people move successfully through treatment and into remission, survivorship care has become an increasingly central part of oncology. What’s Actually in a Survivorship Care Plan? A proper Survivorship Care Plan (SCP) has two core components, based on consensus recommendations developed by ASCO. Treatment Summary – a record of your diagnosis, stage, all treatments received, ongoing side effects, and, where relevant, any genetic testing or predisposing conditions. Follow-Up Care Plan covering: What Are “Late Effects” and Why Do They Matter? Late effects are health problems caused by cancer treatment that don’t appear until months, years, or even decades after treatment has ended, distinct from short-term side effects like nausea or fatigue, which typically resolve within weeks or months. Depending on the treatment received, late effects can include heart problems from certain chemotherapy drugs, organ damage from radiation exposure to a specific area, hormonal or fertility changes, secondary cancers, cognitive changes sometimes called “chemo brain,” and increased cardiovascular risk. This is exactly why a treatment summary matters so much: without a clear record of which drugs and which radiation fields were used, a primary care provider may not know which specific late effects to watch for down the line. Why Can’t My Regular Doctor Just Handle Follow-Up Without a Plan? They often can, but they need the right information to do it well, and this is one of the more overlooked gaps in cancer care. Survivorship care plans exist partly to solve this handoff problem, cancer treatment involves highly specific drug regimens, radiation doses, and organ-specific risks that a general practitioner isn’t necessarily trained to track without documentation from the oncology team. A written treatment summary and follow-up plan gives primary care providers what they need to monitor for the right things, rather than defaulting to general wellness checks that may miss cancer-specific risks entirely. What Should Survivorship Surveillance Actually Look Like? Surveillance protocols vary considerably depending on cancer type, stage, and treatment received, but generally include: Different cancer types have their own established follow-up guidelines for instance, breast, lung, colorectal, prostate, and melanoma each have distinct recommended surveillance schedules and tests, which is why a generic follow-up plan isn’t appropriate for every survivor. Is Emotional and Psychosocial Support Really Part of Medical Survivorship Care? Yes, this is explicitly built into formal survivorship guidelines, not an informal add-on. Consensus recommendations for follow-up care plans specifically call for addressing emotional and mental health, parenting, employment, financial issues, and insurance concerns, along with providing survivors with local and national resources to access appropriate support services. Many survivors experience anxiety around scans and follow-up appointments, sometimes called “scanxiety,” along with broader adjustment challenges — these are recognised, expected parts of the survivorship experience, not signs that something is wrong with how you’re coping. Please don’t dismiss ongoing physical or emotional symptoms as something you should simply push through. Persistent fatigue, pain, mood changes, or new symptoms should always be discussed with your care team rather than self-managed or ignored. What Can You Do to Support Your Own Survivorship? When Should You Contact Your Oncology Team? Build Your Personalised Survivorship Plan Remission is a milestone worth celebrating and survivorship care is how you protect the progress you’ve made. A structured, personalised plan gives you clarity on what to watch for and when to come back. Book a consultation with Dr. Namratha Sai Reddy to put together a survivorship care plan tailored to your diagnosis and treatment history. Frequently Asked Questions What is the

Yes. Obesity is now recognised as one of the most preventable risk factors for cancer, linked to at least13 different cancer types. It’s estimated to account for roughly 10% of all new cancer diagnoses in the United States each year, and up to half of certain cancers such as endometrial cancer. The good news is that this risk is not fixed. Sustained weight loss, whether through lifestyle change or bariatric surgery, has been shown to meaningfully lower cancer risk. An oncologist can help you understand your personal risk based on your weight history, family history, and other factors. Concerned about your cancer risk?  Consult Dr. Namratha Sai Reddy for a personalised risk assessment and guidance on evidence-based prevention strategies. Key Takeaways When should you discuss weight and cancer risk with a doctor? If you have a BMI in the overweight or obese range and a family history of an obesity-linked cancer, or if you’re noticing unexplained symptoms such as abnormal bleeding, persistent digestive changes, or unexplained weight change, speak with a doctor rather than waiting for a routine check-up. Is the Link Between Obesity and Cancer Well Established? Yes, and the evidence has strengthened considerably over the past decade. Major international cancer-research bodies have concluded there is consistent evidence linking higher body fat to an increased risk of multiple cancers, based on reviews of well over a thousand studies. Large population studies covering millions of patients have found statistically significant associations between obesity and 13 cancer types, and researchers now project that in some countries, obesity may overtake smoking as the leading preventable cause of cancer within the next 15 years. How Many Cancers Are Actually Caused by Obesity? Estimates vary somewhat depending on the study, but they consistently point to a substantial public health burden. A major review found that obesity now accounts for roughly 10% of all new cancer diagnoses in the U.S. each year, and up to 50% of certain cancers such as endometrial and liver cancer. Other analyses put the overall figure lower, in the single digits, while some public-health estimates that include the full list of 13 linked cancer types put it considerably higher. The variation reflects differences in methodology, but the direction of the evidence is consistent. Can Obesity Cause Endometrial or Esophageal Cancer? Yes, these two cancers show the strongest obesity-related risk increases of any cancer type studied. What the Evidence Says For type 1 endometrial cancers, people with severe obesity have about seven times the risk, and those with overweight or obesity more broadly have two to four times the risk, compared with people at a healthy weight. For esophageal cancer, severe obesity is associated with nearly five times the risk, and obesity alone with more than double the risk. Can Obesity Cause Breast, Colorectal, Liver, or Kidney Cancer? Yes. These are among the most consistently reported obesity-linked cancers across studies, alongside pancreatic and gallbladder cancer. For breast cancer, the link is strongest after menopause — fat tissue produces an enzyme that converts other hormones into estrogen, and elevated estrogen exposure is a known driver of hormone-sensitive breast and endometrial cancers. For colorectal, liver, kidney, and pancreatic cancer, rising obesity rates among younger adults have specifically been associated with rising rates of these cancers being diagnosed at an earlier age than in previous decades. How Does Obesity Actually Cause Cancer? Obesity doesn’t cause cancer through a single mechanism, it reconfigures the body at a cellular level, creating conditions that make it easier for cancer to develop and spread. The main pathways researchers point to include: Does Losing Weight Actually Lower Cancer Risk? This is one of the most important and encouraging questions in this area of research, and the evidence, particularly from bariatric surgery studies increasingly says yes. What the Evidence Says A large study following patients after gastric bypass surgery found that bariatric surgery reduced overall cancer risk by 25% and cancer mortality by 43%, with even larger benefits in women. A separate large cohort study comparing more than 22,000 bariatric surgery patients to over 66,000 who didn’t have surgery found a33% lower risk of developing any cancer over 10 years of follow-up. More recent research adds an important nuance: the amount of weight lost matters, with greater weight loss associated with a further, dose-dependent reduction in cancer risk. Researchers believe part of this benefit comes from reduced estrogen levels following weight loss, which may particularly lower the risk of hormone-driven cancers such as breast and endometrial cancer. Most of this strongest evidence comes from bariatric surgery specifically; it remains less clear exactly how much cancer risk is reversed through non-surgical, intentional weight loss alone, though the underlying biological mechanisms would be expected to apply regardless of how the weight is lost. Does Obesity Affect Cancer Outcomes, Not Just Risk? Yes. Beyond increasing the chance of developing cancer in the first place, excess body fat is also associated with an approximately 17% increased risk of cancer-specific mortality once cancer has developed, underscoring that weight matters at every stage, not only before diagnosis. Does This Mean Everyone with Obesity Will Get Cancer? No. Obesity is a significant, well-documented risk factor — not a guarantee. Cancer risk is influenced by many factors working together, including genetics, family history, age, environmental exposures, and lifestyle. Many people with obesity never develop cancer, and people at a healthy weight can still be diagnosed. The point of this research is to identify a modifiable risk factor, not to suggest that body weight alone determines outcome. Please don’t use this information to self-diagnose risk or delay a medical evaluation for any symptoms you’re experiencing. A doctor can assess your full risk profile, not just your weight. What Can You Do to Lower Obesity-Related Cancer Risk? When Should You Consult a Doctor? Understand Your Personal Cancer Risk Obesity is one of the most significant, and most modifiable cancer risk factors we know of today. Whether your goal is prevention, early detection, or understanding how weight fits into your

Minimal residual disease (MRD) testing is a highly sensitive method used to detect very small numbers of cancer cells that remain in the body after treatment, often at levels far below what imaging or standard blood tests can pick up. It is already standard practice in blood cancers such as leukemia and myeloma, and is rapidly expanding into solid tumours like colorectal, lung, and breast cancer through blood-based tests that track circulating tumor DNA (ctDNA). MRD results are increasingly used to guide whether a patient needs more treatment, less treatment, or closer surveillance. An oncologist can advise whether MRD testing is appropriate for your specific cancer type and stage. Want to know if MRD testing applies to your treatment plan?  Consult Dr. Namratha Sai Reddy to discuss whether minimal residual disease testing is relevant to your diagnosis, treatment monitoring, or surveillance plan. Key Takeaways When should you discuss MRD testing with your doctor? If you have completed treatment for a blood cancer, colorectal cancer, or certain other cancers and want to understand your risk of relapse more precisely, or if your oncologist has already recommended surveillance testing, ask specifically whether MRD/ctDNA testing is appropriate for your case. What Exactly Is Minimal Residual Disease? Minimal residual disease, sometimes called measurable residual disease refers to the very small numbers of cancer cells that remain in the body after a patient has completed curative-intent treatment, even when scans and standard blood work show no visible signs of disease. Unlike a CT or PET scan, which can only detect tumours once they reach a certain size, MRD testing works at a molecular level. In blood cancers, this typically means examining bone marrow with flow cytometry or DNA sequencing. In solid tumours, it usually means analysing a blood sample for circulating tumor DNA (ctDNA) — fragments of tumor-derived DNA shed into the bloodstream that clear within hours of a macroscopically complete surgery, meaning any ctDNA detected afterward reflects genuine residual cancer rather than surgical leftover. Why Is MRD Testing Considered So Important Right Now? For decades, oncologists have had to make treatment decisions — whether to give more chemotherapy “just in case,” or whether a patient is truly cancer-free — based largely on imaging, blood counts, and statistical risk based on tumor stage. MRD testing offers something different: a direct, molecular readout of whether cancer is actually still present. This matters because pathological staging alone has real limits. In colorectal cancer, for example, despite complete surgical resection, more than 30% of patients with resectable disease still relapse, and standard staging alone cannot reliably identify which of them. Can MRD Testing Change Whether a Patient Gets Chemotherapy? Yes, and this is one of the most significant shifts MRD testing has brought to cancer care. What the Evidence Says The DYNAMIC trial, a randomized study in stage II colon cancer, used ctDNA-guided decision-making to determine which patients needed adjuvant chemotherapy after surgery. Patients who were ctDNA-negative were spared chemotherapy, while ctDNA-positive patients received it. The result was a46% lower rate of chemotherapy use in the ctDNA-guided group, with no difference in two-year recurrence-free survival compared with standard treatment. Japan’s large-scale GALAXY study, part of the CIRCULATE-Japan programme, found something similarly striking: ctDNA positivity after surgery was associated with a nearly 12-fold higher risk of disease recurrence, and patients who achieved sustained ctDNA clearance after chemotherapy had dramatically better two-year disease-free survival than those with persistent positivity (89% versus 3%). Some experts have urged caution, however — a published debate over the DYNAMIC trial raised concerns about its non-inferiority margin and a notable increase in a chemotherapy drug associated with long-term nerve damage in the ctDNA-guided arm, underscoring that this approach is still being refined. Is MRD Testing Standard of Care for Blood Cancers? Yes. MRD testing has the longest track record and strongest evidence base in hematologic malignancies. The National Comprehensive Cancer Network (NCCN) includes MRD testing in its clinical practice guidelines for acute myeloid leukemia, acute lymphoblastic leukemia (including pediatric ALL), chronic myeloid leukemia, and multiple myeloma. In these cancers, MRD is a major, validated predictor of relapse and directly informs treatment intensity. What the Evidence Says In multiple myeloma, a large meta-analysis submitted to the FDA found that conversion to MRD-negative complete response was strongly associated with both progression-free and overall survival, with odds ratios above 4 for both outcomes. This evidence was strong enough that in April 2024, the FDA’s Oncologic Drugs Advisory Committee voted to support MRD-negative complete response as an early endpoint that can be used to support accelerated drug approval in myeloma — a significant milestone, since it means new therapies could reach patients faster based on MRD results rather than waiting years for survival data to mature. Is MRD Testing Used in Lung Cancer? Yes, increasingly so, particularly after surgery for early-stage non-small cell lung cancer (NSCLC). Molecular residual disease analysis is being used to evaluate whether patients on targeted therapies such as osimertinib for resected EGFR-mutated stage IB-IIIA NSCLC are truly disease-free at the molecular level, and consensus frameworks are now being developed by thoracic oncology groups to standardize how ctDNA-based MRD testing should be interpreted and timed in lung cancer specifically, given how much variability currently exists between different assay platforms. Is MRD Testing Used in Breast Cancer? Not yet as a standard part of care. MRD testing is not currently included in breast cancer treatment guidelines, and researchers are still studying exactly how and when it might be useful. Patients interested in MRD testing for breast cancer should talk to their oncologist about what, if anything, is appropriate for their specific situation, since much of this remains investigational. What Other Cancers Are Being Studied for MRD Testing? MRD/ctDNA research is expanding rapidly beyond its established uses: How Is MRD Testing Different from Standard Cancer Follow-Up? How Is MRD Testing Done? Depending on the cancer type, MRD testing may involve: What Can This Testing Tell Your Doctor? A tissue-free MRD assay validated in the GALAXY colorectal cancer

Yes, lung cancer in people who have never smoked is genuinely on the rise. Non-smokers now account for an estimated 10–20% of all lung cancer cases, up from around 8% in the early 1990s, and the trend is more pronounced in women. The increase is linked to a combination of environmental exposures such as air pollution and radon, secondhand smoke, occupational hazards, and inherited or spontaneous genetic mutations like EGFR. If you or a loved one has unexplained respiratory symptoms, an experienced oncologist can help determine whether further evaluation is needed. Concerned about persistent respiratory symptoms?  If you have unexplained cough, breathlessness, or chest discomfort, consult Dr. Namratha Sai Reddy, who specializes in the diagnosis and treatment of lung cancer, including cases in never-smokers. Key Takeaways When should you see an oncologist or pulmonologist? If you have a persistent cough lasting more than three weeks, unexplained breathlessness, coughing up blood, unexplained weight loss, or recurring chest infections, regardless of your smoking history, seek a medical evaluation promptly. Is Lung Cancer in Non-Smokers Really Increasing? For decades, lung cancer was thought of almost exclusively as a smoker’s disease. That picture is changing. Recent data show thatnon-smokers now account for roughly 10–20% of lung cancer cases in the United States, compared with around 8% in the early 1990s. Because overall smoking rates have fallen sharply, the proportion of lung cancers occurring in people who have never smoked has become far more visible than it once was. This isn’t only a statistical shift. Researchers increasingly describe lung cancer in never-smokers (LCINS) as a biologically distinct disease, with its own risk factors, genetic drivers, and treatment considerations, rather than simply a smaller-scale version of smoking-related lung cancer. How Common Is Lung Cancer in People Who Have Never Smoked? Lung cancer remains the leading cause of cancer death worldwide, and it is projected to account for over 125,000 deaths in the U.S. in 2026 alone. Even though total case numbers are falling as smoking rates decline, the non-smoker share of that total is climbing. The pattern is especially notable in women. Global health bodies have flagged a rise in lung cancer among women, particularly younger non-smokers, as a gap in current diagnosis and risk-awareness efforts. In some population groups, more than half of Asian American women diagnosed with lung cancer have never smoked at all. This shift is why oncologists increasingly emphasize that “non-smoker” does not mean “no risk.” Can Air Pollution Cause Lung Cancer in Non-Smokers? Yes. Air pollution is one of the most well-documented drivers of lung cancer in people who have never smoked. A landmark study led by Charles Swanton at the Francis Crick Institute, published in Nature, analysed health data from more than 460,000 people across England, South Korea, and Taiwan. The research found a dose-dependent association between fine particulate matter (PM2.5), the kind produced by vehicle exhaust and fossil fuel combustion, and the incidence of EGFR-mutation-driven lung cancer. What the Evidence Says Using mouse models, the same research team showed that PM2.5 exposure activates pre-existing dormant mutations already present in normal lung tissue, triggering inflammation that allows mutated cells to grow into tumours, rather than creating new mutations from scratch. This helps explain how someone who has never smoked, and has no obvious risk factors, can still develop lung cancer purely through everyday exposure to polluted air. Can Radon Gas Cause Lung Cancer? Yes, radon is considered the leading cause of lung cancer among people who have never smoked, and the second leading cause of lung cancer overall, after smoking. Radon is a naturally occurring, odourless, colourless radioactive gas released from the breakdown of uranium in soil and rock. It becomes dangerous when it seeps into homes and buildings through foundation cracks and accumulates indoors. What the Evidence Says The EPA estimates radon is linked to around 21,000 lung cancer deaths a year in the U.S., of which roughly 2,900 occur in people who have never smoked. Because radon cannot be seen, smelled, or tasted, many people are exposed for years without knowing it, home testing is the only reliable way to detect it. Can Secondhand Smoke Cause Lung Cancer in Non-Smokers? Yes. Secondhand smoke is recognised as the third leading cause of lung cancer, after active smoking and radon. Long-term exposure to a partner’s, family member’s, or coworker’s cigarette smoke measurably raises lung cancer risk, even in someone who has never personally smoked a cigarette. It is also linked to childhood respiratory problems, including asthma and recurrent chest infections. Are There Other Causes of Lung Cancer in Non-Smokers? Several additional factors contribute to rising diagnoses in this group, per the American Cancer Society’s 2026 statistics: How Is Lung Cancer in Non-Smokers Different from Smoking-Related Lung Cancer? Lung cancer in never-smokers tends to differ from smoking-related lung cancer in several important ways: This last point matters enormously: someone with no smoking history and no obvious risk factors may not be considered for screening at all, even with symptoms. What Are the Symptoms of Lung Cancer in Non-Smokers? Symptoms are generally the same as smoking-related lung cancer, but are more easily dismissed or misattributed in someone who has never smoked. Watch for: Because non-smokers are not “expected” to develop lung cancer, these symptoms are sometimes attributed to asthma, allergies, or general fatigue for months before further evaluation is pursued. How Is Lung Cancer Diagnosed in Non-Smokers? Diagnosis typically follows a structured pathway once symptoms or an incidental finding raise concern. Clinical evaluation – A detailed history covering environmental and occupational exposures, family history, and symptom duration, combined with a physical examination. Imaging and testing may include: What Can a Doctor Check For? Because targeted therapies now exist for several of the mutations common in non-smoker lung cancer, molecular profiling of the tumour is a standard part of diagnosis — it directly shapes treatment choice and can meaningfully affect prognosis and quality of life. How Is Lung Cancer in Non-Smokers Treated? Treatment depends on the cancer’s stage, subtype, and genetic profile,

Regular health check-ups play a crucial role in cancer prevention by identifying risk factors, detecting precancerous conditions, and diagnosing cancer at an early stage—often before symptoms develop. Early detection improves treatment success, expands treatment options, and can significantly reduce cancer-related complications and mortality. Key Takeaways Cancer Prevention at a Glance Latest Statistics Introduction Cancer remains one of the leading causes of illness and death worldwide. While advances in diagnosis and treatment have improved survival rates, one of the most effective ways to reduce the burden of cancer is through prevention and early detection. Unfortunately, many cancers develop quietly. In their early stages, they may not cause pain, discomfort, or any obvious symptoms. By the time warning signs appear, the disease may already be more advanced, requiring more intensive treatment. This is why regular health check-ups are so important. They allow healthcare professionals to detect abnormalities before symptoms develop, identify individuals at higher risk, and recommend appropriate screening tests based on age, lifestyle, and family history. Rather than waiting for illness to appear, routine check-ups encourage a proactive approach to health. They help detect disease earlier, support healthier lifestyle choices, and improve the chances of successful treatment when cancer is diagnosed. What Are Regular Health Check-ups? A regular health check-up is a comprehensive medical evaluation designed to assess your overall health, identify risk factors, and detect diseases at an early stage. A preventive health check-up may include: The exact investigations vary depending on your age, sex, medical history, and individual risk factors. Why Are Regular Health Check-ups Important for Cancer Prevention? Health check-ups offer much more than reassurance. They help detect diseases before symptoms appear and create opportunities for early intervention. Benefits include: Routine health assessments shift healthcare from treating disease to preventing it whenever possible. Can Regular Health Check-ups Prevent Cancer? Health check-ups do not directly prevent every type of cancer, but they can reduce the likelihood of advanced disease by identifying abnormal changes early. They contribute to cancer prevention by: For example: Benefits of Early Cancer Detection Early diagnosis has a major impact on treatment success and quality of life. Better Treatment Outcomes Many cancers respond more successfully to treatment when diagnosed before they spread. More Treatment Choices Patients diagnosed at an early stage often have a wider range of treatment options, including less invasive procedures. Less Aggressive Treatment Early-stage cancers may require less extensive surgery, shorter treatment duration, or fewer combined therapies. Improved Quality of Life Treating cancer before it becomes advanced may preserve organ function and reduce long-term complications. Better Survival Rates Screening programmes have significantly improved survival for several cancers through earlier diagnosis. Common Cancer Screening Tests Breast Cancer Screening Women may be advised to undergo: The recommended starting age and screening interval depend on individual risk factors and local guidelines. Cervical Cancer Screening Regular screening helps detect abnormal cervical cells before they progress to cancer. Recommended tests include: Colorectal Cancer Screening Screening options include: Colonoscopy has the added benefit of removing precancerous polyps during the procedure. Oral Cancer Screening Regular oral examinations are especially important for people who: Persistent mouth ulcers, red or white patches, or unexplained lumps require prompt evaluation. Lung Cancer Screening Selected individuals with a significant smoking history may benefit from low-dose CT (LDCT) screening after discussion with their healthcare provider. Prostate Cancer Screening Routine screening is not recommended for every man. Screening decisions should be individualised and may involve: Shared decision-making with a healthcare professional is recommended. Expert Insight The greatest advantage of regular health check-ups is that they identify disease before symptoms appear. In cancer care, detecting abnormalities at an earlier stage often allows simpler treatment, improved survival, and, in some cases, prevention of cancer altogether. Who Should Undergo Regular Cancer Screening? Cancer screening is not the same for everyone. The type of screening and how often it should be performed depends on your age, sex, family history, lifestyle, medical conditions, and individual risk factors. You may benefit from regular screening if you: Even if you feel healthy, your doctor may recommend screening based on your overall risk profile. Healthy Lifestyle Habits That Help Reduce Cancer Risk Although no lifestyle change can completely eliminate the risk of cancer, healthy habits significantly reduce the likelihood of developing many common cancers. Avoid Tobacco Tobacco remains the leading preventable cause of cancer. Smoking and smokeless tobacco increase the risk of: Quitting tobacco at any age improves long-term health. Eat a Balanced Diet A healthy diet supports the immune system and overall wellbeing. Include: Limit: Stay Physically Active Regular exercise helps: Adults should aim for at least 150 minutes of moderate physical activity each week, unless otherwise advised by their healthcare provider. Maintain a Healthy Weight Excess body weight has been linked to an increased risk of several cancers, including: Healthy eating and regular exercise remain the most effective long-term strategies for weight management. Limit Alcohol Consumption Excessive alcohol increases the risk of cancers affecting the mouth, throat, oesophagus, liver, breast, and colon. Reducing or avoiding alcohol can lower these risks. Stay Up to Date with Vaccinations Certain infections increase cancer risk. Vaccinations that help reduce cancer risk include: Warning Signs That Should Never Be Ignored Routine screening is important, but it should never replace medical evaluation when symptoms develop. Consult a healthcare professional if you notice: Most of these symptoms are not caused by cancer, but they should always be assessed if they persist. Myth vs Fact Myth: If I have no symptoms, I don’t need cancer screening.Fact: Many cancers develop silently. Screening is designed to detect disease before symptoms appear. Myth: Only older adults need cancer screening.Fact: Screening recommendations depend on age, family history, lifestyle, and medical risk factors. Some individuals require earlier screening. Myth: Cancer screening prevents every cancer.Fact: Screening cannot prevent all cancers, but it can detect precancerous changes and diagnose cancer earlier when treatment is more effective. Myth: One normal screening test means I never need another.Fact: Regular screening should continue at recommended intervals because cancer risk changes

Oral cancer is a type of cancer that develops in the lips, tongue, gums, inner cheeks, roof or floor of the mouth. The disease is strongly associated with tobacco use, smokeless tobacco, betel nut (areca nut), heavy alcohol consumption, and certain viral infections. Early symptoms include a mouth ulcer that does not heal, red or white patches, persistent pain, difficulty swallowing, loose teeth, or a lump in the neck. Early diagnosis greatly improves treatment outcomes. Key Takeaways Oral Cancer at a Glance Latest Statistics Introduction A small mouth ulcer is something most people ignore. It may appear after accidentally biting the inside of the cheek, eating spicy food, or wearing ill-fitting dentures. In most cases, these ulcers heal within a week or two. The problem begins when an ulcer refuses to heal. Many people continue using home remedies, pain-relieving gels, or mouthwashes without realising that a persistent ulcer, white patch, or red patch may be an early warning sign of oral cancer. Because these changes are often painless in the beginning, diagnosis is sometimes delayed until the disease has progressed. The encouraging news is that oral cancer is one of the few cancers that can often be detected early through a careful examination of the mouth. Recognising suspicious changes and seeking medical attention promptly can make treatment more effective and improve long-term outcomes. What Is Oral Cancer? Oral cancer is a type of cancer that develops when abnormal cells in the tissues of the mouth begin to grow uncontrollably. It can affect: Most oral cancers are squamous cell carcinomas, meaning they arise from the thin, flat cells lining the inside of the mouth. If left untreated, oral cancer may spread to nearby lymph nodes or other parts of the body. What Causes Oral Cancer? Oral cancer develops because of genetic changes that occur within cells over time. Although these changes can happen naturally, several lifestyle and environmental factors significantly increase the risk. Major Risk Factors for Oral Cancer 1. Tobacco Use Tobacco remains the leading preventable cause of oral cancer. The risk increases with: The longer a person uses tobacco, the greater the risk becomes. Stopping tobacco use at any stage helps reduce future cancer risk. 2. Betel Nut (Areca Nut) Chewing betel nut, with or without tobacco, has been strongly linked to oral cancer. Regular use can also lead to oral submucous fibrosis, a condition that causes progressive stiffness of the mouth and increases the risk of developing oral cancer. 3. Alcohol Consumption Heavy alcohol intake increases oral cancer risk. When alcohol use is combined with tobacco, the risk becomes significantly higher than with either habit alone. 4. Human Papillomavirus (HPV) Certain high-risk strains of human papillomavirus (HPV) are associated with cancers involving the throat and parts of the mouth. Although HPV-related cancers differ somewhat from tobacco-related oral cancers, they remain an important cause of head and neck cancers. 5. Excessive Sun Exposure People who work outdoors for long hours may have an increased risk of lip cancer because of prolonged ultraviolet (UV) exposure. Using lip protection and limiting excessive sun exposure may help reduce this risk. 6. Poor Oral Hygiene Poor oral hygiene alone does not directly cause oral cancer. However, untreated dental problems, chronic irritation, and poor oral health may contribute alongside other risk factors. Regular dental check-ups help identify suspicious changes early. 7. Family History Most oral cancers are not inherited. However, individuals with a strong family history of head and neck cancers may have a slightly increased risk and should remain vigilant about regular oral examinations. Early Symptoms of Oral Cancer One reason oral cancer is often diagnosed late is that early symptoms may be painless. Watch for: These symptoms are not always caused by cancer, but they should never be ignored if they persist. When Should You See a Doctor? Arrange a medical or dental evaluation if you notice: Early evaluation often leads to earlier diagnosis and more treatment options. Expert Insight Most mouth ulcers are harmless and heal within one to two weeks. However, an ulcer, red patch, or white patch that persists beyond two weeks deserves professional evaluation. Early-stage oral cancer is often painless, which is why delaying assessment can allow the disease to progress unnoticed. How Is Oral Cancer Diagnosed? If your doctor suspects oral cancer, the next step is a thorough evaluation to determine whether the lesion is cancerous and, if confirmed, how far it has spread. Early diagnosis is essential because treatment is generally more effective when the disease is detected at an early stage. Diagnosis usually involves a combination of clinical examination, biopsy, and imaging tests. Clinical Examination The doctor will carefully examine: The size, shape, colour, texture, and location of the lesion provide important clues about whether further investigation is needed. Biopsy A biopsy is the only way to confirm oral cancer. During this procedure, a small sample of tissue is removed from the suspicious area and examined under a microscope by a pathologist. The biopsy determines: Imaging Tests Once cancer is confirmed, imaging helps determine the stage of the disease. Depending on the situation, your doctor may recommend: CT Scan A CT scan evaluates: MRI Scan MRI provides detailed images of soft tissues and helps assess tumour depth, particularly in the tongue and floor of the mouth. PET-CT Scan A PET-CT scan may be recommended in selected patients to determine whether cancer has spread to lymph nodes or distant organs and to assist with treatment planning. Ultrasound-Guided Needle Biopsy If enlarged lymph nodes are present in the neck, an ultrasound-guided fine needle aspiration (FNAC) or biopsy may be performed to check for cancer spread. Staging of Oral Cancer After completing the investigations, the cancer is assigned a stage. Staging considers: Knowing the stage helps doctors recommend the most appropriate treatment and estimate the likely outcome. Treatment for Oral Cancer Treatment depends on several factors, including: A multidisciplinary team usually develops a personalised treatment plan. Surgery Surgery is often the primary treatment for early and many

Stomach cancer, also known as gastric cancer, develops when abnormal cells in the stomach lining grow uncontrollably. There is rarely a single cause. Instead, it usually results from a combination of factors such as long-term Helicobacter pylori (H. pylori) infection, smoking, diets high in salty or processed foods, obesity, chronic stomach inflammation, certain inherited genetic conditions, and increasing age. Identifying these risk factors early can help reduce the likelihood of developing the disease. Key Takeaways Stomach Cancer at a Glance Latest Statistics Introduction Most people experience indigestion, acidity, or bloating at some point in their lives. These symptoms are usually harmless and often improve with simple lifestyle changes or medication. However, when digestive symptoms persist for weeks or keep returning, they deserve medical attention. Stomach cancer rarely develops overnight. In many people, it begins with long-term inflammation of the stomach lining caused by factors such as bacterial infection, smoking, dietary habits, or chronic irritation. These changes occur slowly, often over several years, before cancer develops. Because early stomach cancer may not cause obvious symptoms, many cases are diagnosed only after the disease has progressed. Understanding the major risk factors and recognising early warning signs can help people seek medical care sooner, improving the chances of successful treatment. What Is Stomach Cancer? Stomach cancer, also called gastric cancer, occurs when abnormal cells in the stomach lining begin growing uncontrollably. The stomach plays an essential role in digestion by breaking down food before it moves into the small intestine. Cancer can develop in different parts of the stomach, although most cases begin in the inner lining. The most common type is gastric adenocarcinoma, accounting for the majority of stomach cancer cases worldwide. How Does Stomach Cancer Develop? Healthy stomach cells grow, divide, and replace themselves in an organised manner. Over time, repeated damage to the stomach lining caused by infection, inflammation, smoking, or dietary factors may lead to genetic changes inside these cells. As these abnormal cells continue to multiply without normal control, they may eventually form a tumour. This process usually develops gradually over many years rather than suddenly. Major Risk Factors for Stomach Cancer 1. Helicobacter pylori (H. pylori) Infection One of the strongest known risk factors for stomach cancer is long-term infection with Helicobacter pylori, commonly known as H. pylori. This bacterium lives in the stomach lining and may cause: Although many people infected with H. pylori never develop cancer, persistent untreated infection increases the risk over time. Testing and treating H. pylori when appropriate can reduce future complications. 2. Smoking Smoking exposes the stomach lining to harmful chemicals that increase inflammation and DNA damage. Research consistently shows that smokers have a significantly higher risk of developing stomach cancer compared with non-smokers. The risk decreases after quitting, making smoking cessation one of the most effective preventive measures. 3. Diet High in Salted and Processed Foods Dietary habits influence stomach health over many years. Frequent consumption of: may increase stomach cancer risk, particularly when combined with H. pylori infection. A diet rich in fresh fruits, vegetables, and whole grains appears to be protective. 4. Obesity Excess body weight has been linked to several cancers, including cancers affecting the upper part of the stomach near the oesophagus. Maintaining a healthy weight through balanced nutrition and regular physical activity supports overall digestive health. 5. Chronic Gastritis Long-standing inflammation of the stomach lining can gradually damage healthy cells. People with chronic gastritis, especially when associated with H. pylori or autoimmune disease, may have an increased risk of stomach cancer over time. Regular follow-up is important when recommended by a gastroenterologist. 6. Family History and Genetics Most stomach cancers are not inherited. However, risk may be higher if: People with a strong family history should discuss personalised screening recommendations with their doctor. 7. Increasing Age Although stomach cancer can occur at any age, it becomes more common after the age of 50. Ageing increases the amount of time the stomach lining is exposed to risk factors such as inflammation, smoking, dietary habits, and genetic changes. 8. Previous Stomach Surgery People who have undergone certain types of stomach surgery may develop long-term changes in stomach function that slightly increase future cancer risk. Regular medical follow-up is important in these individuals. Can Stomach Cancer Be Prevented? Not every case can be prevented, but several healthy habits may help reduce risk. These include: Lifestyle changes cannot eliminate risk completely but can significantly improve overall digestive health. Expert Insight Many people assume persistent acidity or indigestion is simply a part of ageing or an unhealthy diet. While this is often true, symptoms that continue despite treatment or recur frequently should not be ignored. Early evaluation allows doctors to identify treatable conditions—including stomach ulcers, H. pylori infection, or, in some cases, early stomach cancer—before complications develop. Early Symptoms of Stomach Cancer One of the biggest challenges with stomach cancer is that it often causes few or no symptoms in its early stages. When symptoms do appear, they are frequently mistaken for common digestive problems such as acidity, indigestion, or gastritis. While these symptoms are usually caused by non-cancerous conditions, they should not be ignored if they persist or worsen over time. Common Early Symptoms If these symptoms continue for more than 2–3 weeks, or repeatedly return despite treatment, seek medical evaluation. Advanced Symptoms As stomach cancer progresses, symptoms may become more noticeable. These can include: These symptoms do not always indicate cancer, but they require prompt medical assessment. When Should You See a Doctor? Many digestive symptoms improve with dietary changes or short-term medication. However, you should consult a healthcare professional if you experience: Early medical evaluation helps identify the underlying cause and allows timely treatment if needed. How Is Stomach Cancer Diagnosed? If stomach cancer is suspected, your doctor will recommend investigations based on your symptoms and medical history. Upper Gastrointestinal Endoscopy Upper GI endoscopy is the most important test for evaluating the stomach. A thin, flexible tube with a camera is passed through the mouth to

Chemotherapy is an effective cancer treatment that destroys or slows the growth of cancer cells. Because these medicines can also temporarily affect healthy fast-growing cells, some patients experience side effects such as fatigue, nausea, hair loss, mouth ulcers, appetite changes, diarrhoea, constipation, or an increased risk of infection. Fortunately, many of these side effects can be prevented, reduced, or effectively managed with modern supportive care and timely medical guidance. Key Takeaways Chemotherapy at a Glance Latest Statistics Introduction Hearing the word chemotherapy can feel overwhelming. For many patients, one of the biggest concerns isn’t just the cancer itself—it’s the fear of treatment and the side effects that may come with it. Stories shared by friends, family, or social media often make chemotherapy seem far more frightening than it actually is. While chemotherapy can cause side effects, it’s important to remember that every patient’s experience is different. Some people continue many of their daily activities throughout treatment, while others may need extra rest and support. Modern cancer care has changed significantly over the past decade. Today, oncologists have access to effective medications and supportive treatments that help prevent or reduce many chemotherapy-related side effects. Understanding what to expect before treatment begins can reduce anxiety, improve confidence, and help patients recognise when they should seek medical advice. Why Does Chemotherapy Cause Side Effects? Chemotherapy medicines are designed to destroy rapidly growing cancer cells. However, some healthy cells in the body also divide quickly, including those found in: As chemotherapy temporarily affects these healthy cells, side effects may develop. The good news is that most healthy cells recover after treatment, which is why many side effects gradually improve once chemotherapy is completed. The type and severity of side effects depend on several factors, including: Experiencing fewer side effects does not mean chemotherapy is less effective. Common Chemotherapy Side Effects 1. Fatigue Fatigue is one of the most frequently reported side effects of chemotherapy. Unlike ordinary tiredness, cancer-related fatigue often doesn’t improve completely with sleep. Patients may notice: How to Manage Fatigue Persistent fatigue should always be discussed with your healthcare team because it may also be related to anaemia, infection, or nutritional deficiencies. 2. Nausea and Vomiting Many people still associate chemotherapy with severe nausea. Fortunately, modern anti-nausea medications have dramatically improved symptom control for most patients. Helpful Tips Persistent vomiting can lead to dehydration and should be reported promptly. 3. Hair Loss Hair loss is often one of the most emotionally challenging side effects of chemotherapy. However, not all chemotherapy medicines cause hair loss. Hair may become thinner or fall out from the scalp, eyebrows, eyelashes, or other parts of the body, depending on the treatment. The reassuring news is that hair usually begins growing back after chemotherapy is completed, although its colour or texture may temporarily change. Coping Tips 4. Mouth Sores Some chemotherapy medicines can irritate the delicate lining inside the mouth, making eating and drinking uncomfortable. Symptoms may include: Mouth Care Tips 5. Loss of Appetite Many patients notice changes in appetite during chemotherapy. Food may taste different, smell unusual, or seem less appealing. Rather than forcing large meals, focus on: A dietitian specialising in oncology nutrition can provide personalised dietary advice if weight loss becomes a concern. Expert Insight One of the biggest misconceptions about chemotherapy is that every patient will experience severe side effects. In reality, treatment plans are highly individualised, and supportive care has advanced considerably. Reporting symptoms early allows the healthcare team to intervene promptly, often preventing minor problems from becoming more serious. 6. Low Immunity and Increased Risk of Infection One of the most important side effects of chemotherapy is its effect on the bone marrow, where blood cells are produced. When chemotherapy temporarily reduces white blood cells (particularly neutrophils), the body’s ability to fight infections decreases. During this period, even a mild infection can become serious if not treated promptly. Signs of Infection That Need Immediate Medical Attention Contact your healthcare team immediately if you develop: Do not take antibiotics on your own. The cause of infection needs to be identified so the right treatment can be started. How to Reduce Infection Risk 7. Anaemia and Low Blood Counts Chemotherapy can also reduce the production of red blood cells, leading to anaemia. Common Symptoms Your doctor will monitor your blood counts regularly throughout treatment. Depending on the severity, treatment may include nutritional support, medications, or blood transfusions in selected situations. 8. Diarrhoea or Constipation Changes in bowel habits are common during chemotherapy. Some medicines irritate the digestive tract, while others—along with pain medications and reduced activity—may slow bowel movements. If You Have Diarrhoea If You Have Constipation Persistent bowel changes should never be ignored. 9. Tingling or Numbness (Peripheral Neuropathy) Certain chemotherapy medicines may affect the nerves, leading to peripheral neuropathy. Symptoms These symptoms may improve after treatment, although recovery can take time in some patients. Tell your oncologist about any nerve-related symptoms as early as possible, as treatment adjustments may be considered. 10. Skin and Nail Changes Chemotherapy can temporarily affect the skin and nails. Patients may notice: Simple measures such as using fragrance-free moisturisers, protecting the skin from excessive sun exposure, and keeping nails trimmed can help minimise discomfort. Emotional Well-being During Chemotherapy Cancer treatment affects more than the body. Many patients experience anxiety, uncertainty, sadness, or frustration during chemotherapy. These emotions are common and should never be viewed as a sign of weakness. Helpful strategies include: Emotional support is an important part of comprehensive cancer care. When Should You Contact Your Doctor Immediately? Do not wait for your next appointment if you experience: Prompt medical attention can help prevent serious complications. Myth vs Fact Myth: Every patient experiences severe chemotherapy side effects.Fact: Side effects vary widely depending on the chemotherapy medicines, dosage, and the individual patient. Many people tolerate treatment better than expected. Myth: Hair loss means chemotherapy is working.Fact: Hair loss depends on the specific medicines used and is not a measure of treatment success. Myth: You should

Personalised mRNA cancer vaccines are one of the most exciting breakthroughs to emerge after the COVID-19 pandemic. Using the same mRNA technology, these vaccines are designed to train the immune system to recognise and attack a patient’s unique cancer cells. Although still under clinical evaluation, they have the potential to transform cancer treatment through a more precise and personalised approach. Key Takeaways The COVID-19 pandemic introduced the world to messenger RNA (mRNA) vaccines, demonstrating how rapidly this technology could be developed to train the immune system against infectious diseases. But while mRNA vaccines gained global attention during the pandemic, scientists had been researching this technology for decades, particularly in cancer treatment. For many patients, this raises important questions: Is there any vaccine for cancer? Can a cancer cure vaccine eliminate cancer completely? Are these vaccines already available as a cancer vaccine in India? What are the possible cancer vaccine side effects? As a medical oncologist, I believe it is important to separate scientific breakthroughs from unrealistic expectations. Personalised mRNA vaccines represent one of the most promising advances in precision oncology, but they are still being evaluated in clinical trials for many cancers. Understanding where this technology stands today helps patients make informed decisions about emerging treatment options. What Are Cancer Vaccines? One of the most common questions patients ask is, what are cancer vaccines? Unlike vaccines that protect against infections such as influenza or COVID-19, a cancer vaccine is designed to stimulate the body’s immune system to recognise and attack cancer cells. Broadly, vaccines and cancer fall into two categories: Preventive vaccines reduce the risk of developing certain cancers caused by infections, while therapeutic vaccines are intended to treat existing cancers by enhancing the body’s immune response against tumour cells. Is There Any Vaccine for Cancer? The answer is yes, but it depends on the type of vaccine. Currently, there are two major categories: 1. Preventive Cancer Vaccines These vaccines help prevent cancers linked to viral infections. Examples include: These are considered cancer prevention vaccine strategies because they prevent infections that can eventually lead to cancer. 2. Therapeutic Cancer Vaccines These vaccines are given after cancer has already developed. Rather than preventing cancer, they help the immune system recognise tumour cells and destroy them. Personalised mRNA vaccines belong to this category and represent the next generation of anti cancer vaccine research. What is a Personalised mRNA Cancer Vaccine? A personalised cancer vaccine is created specifically for an individual patient. Instead of targeting a virus, scientists first analyse the patient’s tumour using advanced genomic sequencing. This allows them to identify unique proteins, called neoantigens, that exist only on that person’s cancer cells. Researchers then develop an mRNA vaccine containing instructions for producing these neoantigens. Once injected, the vaccine teaches the immune system to recognise these abnormal proteins and mount a targeted immune response against the tumour. Unlike chemotherapy, which affects both healthy and cancerous cells, personalised mRNA vaccines are designed to generate a highly specific immune attack against cancer cells. This precision is one of the reasons personalised anti cancer vaccine technology is generating enormous interest worldwide. How Did COVID Accelerate Cancer Vaccine Research? Although mRNA technology was not invented during the COVID-19 pandemic, the global response dramatically accelerated its development. The pandemic demonstrated that scientists could: These advances benefited oncology research in several ways. Researchers now have improved manufacturing platforms, better delivery systems, a greater understanding of immune activation, and more efficient clinical trial processes. As a result, personalised cancer vaccine development has progressed much faster than many experts anticipated before 2020. How Do Personalised Cancer Vaccines Work? The process is remarkably sophisticated. It generally involves the following steps: Step 1: Tumour Sequencing A sample of the patient’s tumour is analysed to identify its unique genetic mutations. Step 2: Neoantigen Selection Artificial intelligence and advanced computational tools identify which mutations are most likely to trigger an immune response. Step 3: Vaccine Manufacturing Scientists produce an mRNA vaccine containing instructions for those selected tumour-specific proteins. Step 4: Vaccination The patient receives the vaccine through an injection. Step 5: Immune Activation Immune cells learn to recognise the tumour-specific proteins and begin attacking cancer cells carrying those markers. Because every tumour is genetically different, every personalised cancer vaccine is unique to the individual patient. Which Cancers Could Benefit from Personalised mRNA Vaccines? Researchers are investigating personalised mRNA vaccines across a growing number of cancers. Current clinical trials include: Some of the most encouraging results have been reported in melanoma, where personalised mRNA vaccines are being studied alongside immunotherapy to reduce the risk of cancer recurrence after surgery. While these findings are promising, more research is needed before these vaccines become part of routine care for all cancer types. Is the Cancer Vaccine Successful? Some therapeutic cancer vaccines are already approved for specific cancers. In addition, early clinical trials of personalised mRNA vaccines have shown promising results, particularly when combined with immune checkpoint inhibitors. For example, studies in melanoma have demonstrated that combining a personalised mRNA vaccine with immunotherapy may reduce the risk of cancer recurrence compared with immunotherapy alone. However, these vaccines are still being evaluated in larger clinical trials before they become widely available. For this reason, it is more accurate to say that personalised cancer vaccine technology has shown significant promise rather than claiming it is a universal cure. Is There a Cancer Vaccine in India? India already has access to cancer prevention vaccine options, including the HPV vaccine to reduce the risk of cervical and several other HPV-related cancers, as well as the Hepatitis B vaccine, which helps lower the risk of liver cancer. However, personalised mRNA cancer vaccine therapies are still in the research and clinical trial phase worldwide. While Indian researchers and biotechnology companies are actively exploring cancer vaccine technologies, personalised mRNA vaccines have not yet become part of routine clinical practice in India. As global clinical trials continue to report encouraging results, it is expected that these therapies may eventually become available to a broader patient

Unlike conventional biopsies that require removing a sample of tissue through surgery or a needle, a liquid biopsy involves analysing a simple blood sample to detect cancer-related genetic material circulating in the bloodstream. This breakthrough is transforming how oncologists diagnose cancer, monitor treatment response, identify recurrence, and personalise therapy. Key Takeaways For many patients, hearing the word “biopsy” can be frightening. Questions like is biopsy only for cancer, what is biopsy test for cancer, is biopsy safe for cancer, do biopsies spread cancer, and does cancer spread faster after biopsy are common concerns that deserve clear, evidence-based answers. As a medical oncologist, I believe patients should understand not only why biopsies are performed but also how emerging technologies like liquid biopsy cancer testing are improving cancer care. What Is a Liquid Biopsy? A liquid biopsy is a minimally invasive test that looks for cancer-related material in body fluids, most commonly blood. Instead of removing a piece of the tumour, the test searches for tiny fragments released by cancer cells into the bloodstream. These include: Because tumours constantly shed these materials, doctors can gather valuable information about a patient’s cancer through a blood sample. A liquid biopsy test does not replace every conventional biopsy today, but it is increasingly becoming an important tool in modern oncology. How Does a Liquid Biopsy Procedure Work? The liquid biopsy procedure is straightforward and similar to having a routine blood test. The process typically involves: Unlike surgical biopsies, patients usually require: Results often become available within a few days, depending on the laboratory and the complexity of genetic analysis. What Is a Biopsy Test for Cancer? A biopsy test for cancer is a diagnostic procedure in which doctors remove cells or tissue from a suspicious area so that a pathologist can examine them under a microscope. The tissue helps determine: Traditional biopsies remain essential because they provide information that blood-based tests cannot always capture. Today, however, liquid biopsy cancer testing is increasingly being used alongside tissue biopsies to provide additional genetic information that supports precision medicine. How Is a Liquid Biopsy Different from a Traditional Biopsy? Both procedures aim to diagnose and understand cancer, but they differ significantly. Traditional Tissue Biopsy Liquid Biopsy Removes tumour tissue Uses a blood sample May require surgery or needle biopsy Simple blood draw Can be invasive Minimally invasive Usually, samples one part of the tumour May capture DNA from multiple tumour sites Recovery may be needed Minimal recovery Difficult to repeat frequently Easy to repeat during treatment One important advantage of a liquid biopsy is that it can provide a broader picture of cancer because different tumour sites throughout the body may release DNA into the bloodstream. This helps doctors understand tumour evolution over time. Why Is Liquid Biopsy Cancer Testing Becoming So Important? Cancer is not static. As cancer cells grow and divide, they develop new genetic mutations. Some of these mutations can make treatments stop working. Traditionally, obtaining another tissue sample to study these changes meant repeating an invasive biopsy. A liquid biopsy test makes this process much easier. Doctors can monitor genetic changes over time by analysing blood samples taken during treatment. Research published in Nature Reviews Clinical Oncology highlights that liquid biopsy enables serial monitoring of circulating tumour DNA (ctDNA), allowing clinicians to identify treatment-resistant mutations, monitor tumour evolution, and assess response to therapy without repeated invasive tissue biopsies. This ability to monitor cancer continuously is one of the biggest reasons why liquid biopsy cancer technology is changing oncology. Can a Liquid Biopsy Detect Cancer Early? Early cancer detection is one of the most promising applications of liquid biopsy technology. In the Circulating Cell-free Genome Atlas (CCGA) study, researchers evaluated a methylation-based blood test using samples from 15,254 participants across 142 sites in North America. The test demonstrated a specificity of 99.5%, meaning false-positive results occurred in only 0.5% of individuals without cancer, while also detecting cancer signals across more than 50 cancer types. These findings highlight the potential of liquid biopsy as a complementary tool for earlier cancer detection, although further validation is still underway. The potential advantages include: However, these tests are not yet suitable for replacing all established cancer screening programmes. For now, they serve as complementary tools in selected patients and continue to evolve as scientific evidence grows. Which Cancers Can Be Evaluated Using a Liquid Biopsy Test? A liquid biopsy test is currently used in several cancer types, particularly where molecular profiling guides treatment decisions. These include: In many of these cancers, identifying specific genetic mutations helps doctors select targeted therapies that are more likely to be effective. Rather than using a one-size-fits-all approach, treatment can be personalised based on the tumour’s unique genetic profile. Can Liquid Biopsy Replace Traditional Cancer Biopsies? This is one of the most common questions patients ask. The answer is: not yet, but it may in selected situations. Traditional tissue biopsies still provide essential information about: A liquid biopsy cannot always provide this level of detail. However, there are situations where a liquid biopsy may reduce the need for repeated tissue biopsies, especially when: For many patients, the future of cancer diagnosis is likely to involve both tissue biopsies and liquid biopsy technologies working together rather than one completely replacing the other. Does Cancer Spread Faster After Biopsy? The answer is no. Cancer spreads because of its own biological behaviour, not because a biopsy has been performed. Tumour cells grow, invade nearby tissues, and travel through blood vessels or lymphatic channels as part of the natural progression of the disease. A biopsy does not accelerate this process. In some cases, patients notice that a tumour seems larger or more painful after the procedure. This is usually due to temporary inflammation, bruising, or swelling caused by the biopsy itself, not because the cancer is growing more rapidly. Accurate diagnosis through a biopsy actually helps doctors begin treatment sooner, improving the chances of controlling the disease effectively. Is Biopsy Safe for Cancer? Yes. In experienced hands,