The five items of hepatitis B are divided into hepatitis B surface antigen, hepatitis B surface antibody, hepatitis B core antibody, hepatitis B e antibody and hepatitis B e antigen. The normal value of hepatitis B surface antigen is usually less than 0.05 IU/mL, and the international standard unit is IU/mL. The normal value of hepatitis B surface antigen is 0 IU/mL, and only among patients who are cured of acute or chronic hepatitis B, values less than 0.05 IU/mL can be seen, such as 0.01 IU/mL and 0.02 IU/mL. The normal value of hepatitis B surface antibody is less than The normal value of hepatitis B surface antibody is less than 10mIU/mL, positive is greater than or equal to 10mIU/mL, hepatitis B surface antibody is protective antibody, that is, the antibody that needs to appear from childhood vaccination, only when greater than or equal to 10mIU/mL will take effect, in order to neutralize the small part of the virus that invaded the body, the international standard unit is mIU/mL. negative value of hepatitis B e antigen determination is less than 1s/co, hepatitis B e Some patients have only positive hepatitis B core antibodies, which means they have been infected with hepatitis B before, but they have cleared up and have cured themselves.