Hepatitis B is known as viral hepatitis B. Hepatitis B patients usually need to be examined for Hepatitis B V, Hepatitis B DNA, liver function, alpha-fetoprotein, and ultrasound of liver, gallbladder and spleen every six months or a year. 1. Hepatitis B five: including hepatitis B surface antigen, hepatitis B surface antibody, hepatitis B e antigen, hepatitis B e antibody, hepatitis B core antibody, also known as two half tests. The significance of Hepatitis B V is whether you are infected with Hepatitis B virus and the details of the infection. 2. Hepatitis B DNA: used to detect the replication of hepatitis B virus, positive hepatitis B DNA suggests that hepatitis B is replicating and infectious, the higher the hepatitis B DNA is, the more the virus replicates and the more infectious it is. 3. Liver function: used to monitor the liver for inflammation and damage, as well as to assess the degree of liver inflammation. 5. Alpha-fetoprotein: used to screen for liver cancer. If alpha-fetoprotein is significantly higher or 10-20 times higher than the normal value, it suggests liver cancer. 4. Ultrasound of liver, gallbladder and spleen: it is used to check whether there is cirrhosis and liver cancer. Hepatitis B patients should pay attention to regular checkups in the hospital, always know the changes of their condition and find abnormalities for timely treatment.