According to statistics, about 260,000 people die from liver cancer worldwide every year, and nearly 100,000 people in China. Because of its high malignancy, rapid development and difficulty in treatment, liver cancer has become the “king of cancers” that seriously threatens human health and life, and it is worth to be alerted. Experts point out that to prevent liver cancer, we should start from life and pay attention to the following points. Not only children should be born with hepatitis B vaccine, but also adults who have not been vaccinated against hepatitis B and have not had hepatitis can be vaccinated against it. This can stop some of the hepatitis from developing into liver cancer. Stay away from carcinogenic substances Do not eat moldy or mushy food, which contains aflatoxin, a carcinogenic substance. Eating moldy food is very likely to cause liver cancer. 3. Quit drinking Alcohol needs to be detoxified by the liver, the largest chemical plant in the human body. The acetaldehyde produced in this metabolic process is extremely toxic to human body, which can lead to cell damage, fat deposition in liver cells, inflammation and necrosis of liver cells, and proliferation of fibrous connective tissue, which can eventually lead to cirrhosis of the liver, and part of cirrhosis of the liver will turn into liver cancer. Regular medical checkups Patients with chronic hepatitis B or C have 10 to 30 times higher chance of liver cancer than normal people. If hepatitis is well, but the damage of hepatitis virus to liver does not disappear, which means the basis of cancer is still there, so regular checkups should be conducted. For people over 35 years old who are positive for hepatitis B surface antigen, have suffered from chronic hepatitis and cirrhosis for more than 5 years, and have a family history of liver cancer in three generations of their immediate family members, testing methemoglobin and liver ultrasound every six months is the most effective way to detect liver cancer at an early stage. V. Active exercise The occurrence of liver cancer is also related to the immunity of the body. Under normal circumstances, the cells in human body may form cancer cells, but the immune system of human body has the ability to remove these cells, so that cancer does not occur in human body. When the immunity of human body is weakened, cancer will easily occur. Active exercise and strengthening the immunity of human body is also an important aspect to prevent the occurrence of liver cancer. Hepatitis B patients should have good living habits, regular living and living, proper physical and mental exercise, and maintain optimistic mood, which can enhance physical fitness, improve body immunity, and prevent the occurrence of cirrhosis and hepatocellular carcinoma.