What are the causes of liver cancer

What are the causes of liver cancer?

The main causes of liver cancer in my country include viral hepatitis infection, aflatoxin contamination in food and rural drinking water pollution.

1. About 1/3 of liver cancer patients have a history of chronic hepatitis. The anti-HbsAg positivity rate in Australia is significantly higher than that in low-incidence areas. It was found that hepatitis C virus infection is closely related to hepatitis B infection. Hepatitis B virus and hepatitis C virus are definitely one of the factors that promote cancer.

2. About 50% to 90% of liver cancer patients have liver cirrhosis. In recent years, it has been found that the proportion of hepatitis C developing into cirrhosis is no less than that of hepatitis B.

3. Experiments have shown that the metabolite of aflatoxin is aflatoxin B1. It has a strong carcinogenic effect and exists in moldy corn, peanuts and other foods. Aflatoxin is a food B in severely polluted areas, and the incidence of liver cancer is also high. Nitrosamines, azo mustard, alcohol, organochlorine pesticides, etc. are all suspected carcinogens.

4. Some drinking water is often contaminated by polychlorinated biphenyls and chloroform. In recent years, it has been found that blue-green algae growing in ponds is a strong carcinogenic plant that can pollute water sources. Parasitic diseases, such as Clonorchiasis, can stimulate bile duct epithelial hyperplasia and lead to primary bile duct cancer.

5. Long-term alcohol abuse is the number one killer that damages the liver. This is because after alcohol enters the human body, it is mainly metabolized in the liver. The toxicity of alcohol to liver cells hinders the decomposition and metabolism of fatty acids by liver cells, leading to liver fat deposition and fatty liver.