Primary liver cancer is highly prevalent in China, and the number of incidences in China accounts for about 55% of the world; it ranks second after lung cancer in tumor-related deaths. The global incidence rate has exceeded 626,000/year, ranking 5th among malignant tumors: the death is close to 600,000/year, ranking 3rd among tumor-related deaths. Liver cancer includes two kinds of cancer, primary liver cancer and metastatic liver cancer, mostly primary liver cancer. Common causes of liver cancer 1. Chronic hepatitis patients: epidemiological statistics show that areas where hepatitis B is prevalent are also areas with high incidence of liver cancer, and people who have suffered from hepatitis B have much more chances to develop liver cancer than those who have not suffered from hepatitis B. Hepatitis viruses including hepatitis B and C are the main initiating factors among many factors in the development of human liver cancer. According to statistics, there are about 100 million chronic asymptomatic hepatitis B virus carriers and about 30 million chronic hepatitis B patients in China. Just from the number of hepatitis B virus carriers, it is almost one out of ten people in the country. 2, unclean diet: long-term consumption of moldy food, food containing nitrite food and the lack of trace elements in food selenium is also one of the important factors that promote liver cancer. Aflatoxin in moldy corn, peanuts, etc. is the main factor that induces cancer, and is the only substance that has a clear carcinogenic effect so far, which is one of the auxiliary causes of liver cancer. 3.Alcoholism: Alcoholics have a high incidence of cirrhosis, especially on the basis of hepatitis, a large amount of alcohol consumption will accelerate the formation and development of cirrhosis and promote the occurrence of liver cancer. Strictly speaking, alcohol consumption is not a direct cause of liver cancer, but it is a catalyst that can promote the carcinogenic effect of carcinogens. Early screening for liver cancer can be performed for people with high risk of liver cancer, i.e., men ≥ 35 years old, those with hepatitis B and/or C virus infection, and alcoholics, generally screening is performed every 6 months, mainly including two items of serum alpha-fetoprotein (AFP) and liver ultrasound examination. For those with AFP > 400 μg/L and no liver occupancy on ultrasonography, attention should be paid to exclude pregnancy, active liver disease and germinal gland embryonic-derived tumors; if they can be excluded, liver CT and/or MRI should be performed. If AFP is elevated but not at the diagnostic level, in addition to the above-mentioned conditions that may cause AFP increase should be excluded, the dynamic changes of AFP should be closely tracked (usually blood is drawn and rechecked once in half a month), the interval of ultrasound examination should be shortened to 1 to 2 months, and CT and/or MRI examination should be performed when needed. Proper treatment choice for liver cancer The general principle of liver cancer treatment is early detection and early diagnosis, and the implementation of standardized and comprehensive treatment is emphasized. There are many treatment methods for liver cancer, and if correct and reasonable treatment can be obtained, the long-term efficacy of liver cancer is still relatively ideal. The common treatment methods for liver cancer can be divided into surgical and non-surgical treatments. Surgical treatment includes liver lobectomy and liver transplantation, which are the preferred treatment methods for liver cancer and can remove tumor tissues completely and achieve the purpose of radical cure. The so-called non-surgical or pre- and post-surgical adjuvant therapies include arterial chemoembolization, local ablation therapy (radiofrequency ablation, microwave ablation, alcohol injection, high-intensity focused ultrasound), radiotherapy and molecular targeted therapy, etc. Arterial chemoembolization, which is often referred to as interventional therapy, is the first choice of non-surgical treatment and is often used for patients with mid-to-late stage liver cancer that cannot be surgically resected, which can achieve the purpose of controlling the disease and prolonging survival. For patients with early stage liver cancer with a single tumor ≤125px in diameter or multiple nodules (within 3) with a maximum diameter ≤75px, without vascular bile duct invasion and good liver function who are resolutely unwilling to undergo surgery or do not have the conditions for surgery, radiofrequency or microwave ablation is the best alternative to surgery. For patients with advanced hepatocellular carcinoma, imported molecular targeted drugs such as sorafenib can slow down tumor progression and can prolong survival. In addition, we can also consider hepatoflux capsules, huachansuo tablets, Baxenol tablets, hepatolysis and so on. If the patient is a carrier of hepatitis B virus, lifelong antiviral treatment is recommended. In the face of liver cancer, there is no fixed treatment plan applicable to all cases of liver cancer, and in the treatment of different liver cancer patients, multiple means are needed to complement each other and integrate organically. In order to achieve the best therapeutic effect and prolong the life of patients.