The saying that “three signs indicate liver cancer” is unscientific. Liver cancer usually has an insidious onset and lacks typical clinical manifestations in the early stage. The metabolism of liver is strong, and early liver cancer does not show symptoms in clinic. When liver cancer patients show obvious clinical symptoms, such as pain in liver area, liver enlargement, jaundice, etc., most of the patients are in the middle to late stage of the disease, and some of the patients even have metastatic foci of liver cancer as their first symptom, such as coughing, coughing up sputum, etc., therefore, they cannot diagnose the disease only according to the clinical symptoms. In addition, acute liver damage caused by viral hepatitis and alcoholic liver disease can also lead to clinical symptoms such as liver enlargement, liver discomfort and jaundice, therefore, the saying of “three signs indicate liver cancer” is not scientific. For early detection of liver cancer, regular medical checkups and cancer screening are recommended. If you find a substantial liver mass, you should go to the hospital as soon as possible to improve your prognosis.