Liver cancer refers to malignant tumors occurring in the liver, including primary liver cancer and metastatic liver cancer, and most people refer to primary liver cancer in daily life. Primary liver cancer is one of the most common malignant tumors in clinical practice. According to the latest statistics, there are about 600,000 new liver cancer patients worldwide every year, ranking fifth among malignant tumors. Primary liver cancer can be divided into hepatocellular liver cancer, cholangiocellular liver cancer and mixed liver cancer according to cellular typing. According to the tumor shape, it can be divided into nodular, massive and diffuse types. Liver cancer is the third most common malignant tumor after gastric cancer and esophageal cancer in terms of mortality rate. The symptoms are not obvious in the early stage, but mainly manifest as liver pain, weakness, emaciation, jaundice, ascites and other symptoms in the late stage. However, the cure rate of late stage patients is low due to the spread of cancer cells, so it is necessary to achieve early detection, early diagnosis and early treatment of liver cancer. Prevention of liver cancer 1. First of all, do not eat moldy grains from diet. Pay attention to no exposure to radioactive substances in life. 2.Patients with history of liver disease should have regular review of blood AFP level and liver ultrasound to achieve early detection, early diagnosis and early treatment of liver cancer. 3.For patients with cirrhosis developed on the basis of hepatitis, the importance of antiviral treatment should be emphasized, and early antiviral treatment can effectively control the progress of cirrhosis. 4. Once liver cancer is diagnosed, reasonable individualized treatment plan for liver cancer should be selected according to the size, location, presence or absence of metastasis inside and outside the liver and the patient’s general condition. At present, the three major curative means of liver cancer include surgical resection, radiofrequency therapy and liver transplantation. Multimodal comprehensive treatment and joint treatment by multidisciplinary team can significantly improve the prognosis of patients. 5. Long-term antiviral therapy is very important after liver cancer surgery, which can clearly reduce the recurrence of liver cancer. Regular review is very important, and imaging examination as well as dynamic detection of AFP changes should be performed regularly. Liver cancer diet Dietary principles 1.Balanced diet: patients are also required to eat more fresh vegetables, rich in fiber. 2.Fat and protein: patients with liver cancer are often combined with cirrhosis, gastrointestinal edema and poor appetite, so they should eat less and more meals, increase the calorie of the diet and eat crude fat that can be easily digested and absorbed. 3.Vitamins: Vitamin A, C, E and K have certain auxiliary anti-tumor effects. Vitamin C is mainly found in fresh vegetables and fruits. Carotene can be converted into vitamin A after entering the body, so liver cancer patients should have more vegetables and fruits with more vc. 4.Inorganic salt: i.e. minerals. Nutritionists divide inorganic salts into two categories: macronutrients, such as calcium, sodium, potassium, etc.; trace elements, such as selenium, zinc, iodine, etc.. Scientists found that selenium, iron and other minerals have anti-cancer effects. 5.Patients with liver cancer can have some meat food for lunch, and eat more vegetables for dinner, and should not eat fried food.