At present, many patients who have liver cancer know very little about the disease. It is only after the disease is discovered that they really pay attention to their health, but I am afraid it is already a little late. In fact, liver cancer is a kind of malignant tumor disease with complex causes and variable symptoms, so you can imagine how harmful it is to the body, and even life-threatening if it is serious. So, what factors are the main causes for the formation of liver cancer? What factors are the main causes of liver cancer formation I. Viral hepatitis Viral hepatitis causes liver cancer mostly by hepatitis B and C virus infection, especially hepatitis B and hepatitis B virus carriers, whose prevalence of primary liver cancer is 2 to 100 times higher than normal people; in places with high incidence of liver cancer, about 20% of people may be hepatitis B or hepatitis B virus carriers. Aflatoxins Aflatoxin B is the most important carcinogenic object. It is suitable for growth and reproduction in high temperature and high humidity climates, especially moldy food and cereals and feed in summer, which are most likely to be contaminated by aflatoxin and produce aflatoxin. Long-term consumption of food containing this toxin can cause liver cancer. Immune status Some people think that the plasma of liver cancer patients contains a closure factor, which can contain cellular immunity and protect liver malignant tumors from being killed by immune cells. It has long been proved that AFP can inhibit the phagocytosis of lymphocytes and macrophages. Fourth, water source pollution Serious pollution of drinking water quality is one of the important causative factors for liver cancer, especially polluted ditch water, then river water, and well water is the lowest. Therefore, in villages without running water facilities, drinking water from wells should be advocated. Chemical carcinogenic objects The chemical objects that can induce liver cancer are mainly N-nitroso compounds, such as nitrosamines and nitrosamides. Besides, pesticides, alcohol, safrole, etc. can also induce liver cancer.