Hepatitis B pentameter test 2 and 5 positive, means hepatitis B surface antibody positive, core antibody positive, if the liver function test transaminase is normal, hepatitis B virus DNA can not be detected, it means that there has been a history of acute hepatitis or chronic hepatitis B, which is called recovery from hepatitis B, and does not need treatment. If the transaminases are repeatedly or persistently abnormal and no other cause can be found, hepatitis B virus DNA test should be done to see if it is occult chronic hepatitis B. If chemotherapeutic drugs or immunosuppressant treatment is applied, liver function, hepatitis B five items and hepatitis B virus DNA should be rechecked regularly, and antiviral treatment should be given as soon as hepatitis B surface antigen turns positive or hepatitis B virus DNA appears positive.