1.Chronic liver disease: especially viral hepatitis is closely related to the development of liver cancer, which is called the “catalyst” of liver cancer by the medical profession, among which hepatitis B (HBV) and hepatitis C (HCV) are the most important, and some data show that more than 30% of liver cancer patients have a history of chronic hepatitis, and more than half of them are HbsAg positive. Therefore, hepatitis B virus and hepatitis C virus are regarded as one of the cancer-promoting factors, which are the causes of liver cancer. 2.Long-term consumption of pickled, fried and smoked foods can also induce liver cancer: nitrosamines contained in pickled foods and 3,4-benzopyrene contained in fried and smoked foods can induce cancer, so we should try to reduce the consumption of pickled, fried and smoked foods such as cured meat, grilled meat, baked sausage, salted fish and pickled vegetables in our daily life. 3.Cirrhosis: Medical observation shows that about 50%-90% of liver cancer patients have different degrees of cirrhosis, so cirrhosis is also regarded as a cancer-promoting factor, so patients with cirrhosis should do a good job of regular review to prevent the occurrence of liver cancer. 4. Consumption of spoiled food can also induce liver cancer: Studies have found that moldy food produces a toxic metabolite, aflatoxin, in its mold, which is the most powerful biological carcinogen found today, so moldy foods such as peanuts, corn, rice, dried potatoes, dried turnips, dairy products, and soy products should be avoided. 5.Water pollution: Serious pollution of drinking water is one of the important causes of liver cancer, especially the contaminated ditch water, followed by river water and the lowest well water. Therefore, in villages without running water facilities, drinking well water should be promoted. Immune status: It is believed that the plasma of liver cancer patients contains a confinement factor, which can inhibit cellular immunity and protect liver cancer cells from being killed by immune cells. Now it has been proved that AFP can inhibit the phagocytosis of lymphocytes and macrophages. 7.Gene mutation: In recent years, it is also believed that the activation of hepatocyte division reaction pathway stimulated by mutagen and virus in the environment, which causes point mutation and gene translocation of cells, is a possible factor to accelerate the proliferation of cancer cells. 8.Other factors: excess nutrition (large amount of nutrients) or lack of nutrition (such as vitamin A and B1 deficiency), hemochromatosis, parasitic infection and genetics are also risk factors to induce liver cancer. If patients have liver cancer, they will first feel fatigue, and even if they lie down and lie still, they will not be able to eliminate the fatigue. Such tiredness and fatigue that cannot be eliminated are common symptoms of liver disease in general. The heat energy produced by the food consumed by human body will be absorbed by the intestine and partially transported to the liver, where it will be stored and then transported to all cells of the body. If the liver is attacked by cancer cells, the fuel supply to the whole body will be reduced, and as a result, the body will be tired and easily fatigued due to lack of heat energy. If you are just tired or lazy, you may also be suffering from a cold or overwork. Few people will realize that they may have liver cancer, so the disease is delayed.