The probability of hepatitis B progressively developing into liver cancer is not very high, its about 5 to 10 percent. Hepatitis B is actually caused by the hepatitis B virus, which is an infectious disease with liver damage as the main lesion. For patients carrying hepatitis B virus, they are required to undergo a liver physical examination every six months, which mainly includes blood routine, liver function, hepatitis B virus DNA, alpha-fetoprotein test, etc., and at the same time, they need to be followed up to see if they are suffering from a history of hepatitis, a history of fibrosis, or even the occurrence of cirrhosis of the liver as well as liver cancer. Hepatitis B is a chronic infectious disease that threatens the health of the nation, and alpha-fetoprotein and liver ultrasound are universally applicable tests. If physical examination reveals liver occupations, CT or MRI of the liver is necessary to clarify the benign or malignant nature of the occupations.