Active prevention and treatment of viral hepatitis is important to reduce the incidence of liver cancer: 1. Inactivated vaccination against hepatitis B virus not only prevents and treats hepatitis, but also plays a role in preventing and treating liver cancer. 2.Avoid unnecessary blood transfusion and transfusion of blood products. 3.Prevent food mold, improve the quality of drinking water. 4.To quit smoking, alcohol and other bad habits and minimize the intake of unhealthy food. 5, high-risk groups (over 40 years old with a history of chronic hepatitis, HBsAg positive or cirrhosis patients) should have regular medical checkups (at least testing AFP and ultrasound), with a view to early detection, early diagnosis and early treatment, which can significantly improve the prognosis.