Liver cancer doesn't always announce itself: The early symptoms many people miss

The liver is one of the hardest-working organs in the human body. It filters toxins, helps digest food, stores nutrients, regulates metabolism, and supports immunity. Yet, despite its importance, it often suffers in silence.Liver cancer is now among the leading causes of cancer-related deaths worldwide. The worrying part is that many people do not know they have it until the disease has reached an advanced stage. Unlike some cancers that announce themselves with obvious symptoms, liver cancer can quietly grow for months, sometimes years, before showing clear signs.According to the latest estimates from the Indian Council of Medical Research (ICMR) and the National Cancer Registry Programme (NCRP), liver cancer remains one of the major causes of cancer mortality in India, largely because many cases are detected late. The purpose of understanding these warning signs is not to create fear. It is to encourage awareness, especially among those living with liver disease or carrying risk factors that put them in the danger zone.One of the biggest reasons liver cancer is diagnosed late is because the liver has an extraordinary reserve capacity. Even when a part of it is damaged, the organ continues performing its functions remarkably well.Dr Pradeep Krishna R V, HPB Surgeon and Liver Transplant Surgeon at Apollo Hospital, Bengaluru, explained, "Unfortunately, because the liver has a significant reserve capacity, many people will have few to no symptoms during the initial stage."People living with hepatitis B, hepatitis C, cirrhosis, and metabolic dysfunction-associated fatty liver disease (MAFLD) are at a significantly higher risk of developing liver cancer. In fact, the World Health Organization (WHO) estimates that chronic hepatitis infections account for the majority of liver cancer cases globally. What makes liver cancer particularly dangerous is that the early symptoms often mimic everyday health complaints.One of the earliest clues can be unexplained weight loss.Dr Pradeep said, "The classic symptom is unexplained weight loss or sudden loss of weight. People may also eat significantly less or feel full before finishing their usual amount of food."Many people blame this on stress, dieting, work pressure, or digestive issues. But when the body starts losing weight without any effort, it deserves attention.Persistent fatigue is another warning sign. This is not the tiredness that disappears after a good night's sleep. Cancer-related fatigue is deeper. It lingers. It affects concentration, physical activity, and everyday life.Dr Pradeep added, "Unlike common fatigue, fatigue that occurs during cancer is more intolerable and doesn't go away easily with rest."Some people also notice a loss of stamina, weakness, and an unusual sense of exhaustion that seems difficult to explain.The challenge is that these symptoms are extremely general. Most people dismiss them because they can occur in several harmless conditions.However, if chronic fatigue, appetite loss, and unexplained weight changes occur together, particularly in someone with existing liver disease or a family history of liver cancer, medical evaluation should not be delayed.As the disease progresses, the symptoms become more specific.Pain or discomfort on the right side of the abdomen is among the most common complaints.Initially, it may appear as occasional heaviness or a dull ache. Over time, the pain can become more frequent and intense.Some people may feel pain under the right ribs. Others may notice swelling or a lump in the upper abdomen due to liver enlargement.Another condition called ascites can also develop. This refers to the build-up of fluid in the abdomen, causing bloating and an increase in waist size.Dr Pradeep explained, "A condition called Ascites, which happens due to fluid accumulation causing abdominal swelling, may also occur."Liver problems can also trigger pain in the right shoulder because of irritation of nerves connected to the diaphragm.These symptoms become particularly concerning when they appear in someone already diagnosed with hepatitis, cirrhosis, or fatty liver disease.Modern imaging tests such as ultrasounds, CT scans, and MRIs can help doctors identify whether these changes are linked to liver cancer or another liver condition.Most people associate jaundice with yellowing of the eyes and skin. However, it can sometimes be an important sign of liver cancer.When the liver struggles to process bilirubin properly, the substance accumulates in the bloodstream, leading to jaundice.Along with yellow eyes, people may experience:Dark urinePale or clay-coloured stoolsPersistent itchingSkin rashesSwelling in the legsEasy bruising and bleedingThere can also be subtle changes in mental health.Some people develop confusion, forgetfulness, or altered thinking patterns because the liver is unable to remove toxins efficiently.Dr Pradeep noted, "Our liver health, along with our GI health, is directly related to our mental health; hence, some people might also notice an altered mental state or frequently occurring confusion."For people with cirrhosis, any sudden decline in liver function should immediately raise concern.The good news is that liver cancer is often treatable when found early.According to Dr Pradeep, "The only way to avoid the complications is to detect the cancer early and to start the immediate possible treatment."Early diagnosis may involve:Blood tests, including liver function testsAlpha-fetoprotein (AFP) blood testUltrasound examinationCT scans or MRI scansAdditional tests when requiredDoctors strongly recommend regular surveillance for people considered high risk.This includes individuals with:Hepatitis BHepatitis CCirrhosisMetabolic dysfunction-associated fatty liver disease (MAFLD)A family history of liver cancerPrevention also plays a huge role.Several lifestyle choices can lower the risk:Getting vaccinated against hepatitis BAvoiding excessive alcohol consumptionNot smokingMaintaining a healthy body weightManaging diabetes and fatty liver diseaseExercising regularlyEating a balanced diet rich in fruits, vegetables, and whole foodsUndergoing periodic health screeningsThe liver rarely complains loudly when something is wrong. Often, it whispers. A little fatigue. A few kilos lost without trying. A reduced appetite. A strange heaviness in the abdomen.Individually, these signs may seem harmless. Together, they may be the body's quiet way of asking for help. Listening to those signals early could make all the difference.This article includes expert inputs shared with TOI Health by:Dr Pradeep Krishna R V, M.Ch (Surgical Gastroenterology), DNB (Surgical Gastroenterology), FMAS, FIAGES, HPB Surgeon & Liver Transplant Surgeon, Apollo Hospital, Bengaluru, India.Inputs were used to explain the often-overlooked warning signs of liver cancer, why the disease is frequently diagnosed at a late stage, and why recognising early symptoms and seeking timely medical evaluation can improve outcomes and potentially save lives.