According to the picture of global liver cancer incidence, dark color means higher incidence, light color means lower incidence, and China should be the region with relatively high incidence of liver cancer. In our country, there are more than 8-10 per 100,000 people, and the high-risk group refers to hepatitis B and C patients, and the occurrence of high-risk group is about 500 per 100,000 people, which shows that the occurrence of hepatitis B high-risk group is much higher than the general population.