A positive serology test for hepatitis B usually refers to a positive test for one or more of the five hepatitis B tests. If it refers to hepatitis B surface antigen, it means that the person is currently a hepatitis B patient and is often accompanied by a positive core antibody to hepatitis B, or a positive e antibody or e antigen, which would be a small two-positive, small three-positive or large three-positive condition. A positive serological test for hepatitis B refers only to hepatitis B surface antibodies and is nothing to worry too much about, which means that you are not currently a hepatitis B patient. The hepatitis B surface antibody is a protective antibody that is produced after the hepatitis B vaccination. It is not a sign of hepatitis B infection, but rather the acquisition of immunity to the hepatitis B virus, and if you are not hepatitis B now, you will not get hepatitis B in the future. If a positive serology for hepatitis B refers to hepatitis B core antibody, it depends on whether it is accompanied by a positive surface antigen or surface antibody. So the hepatitis B core antibody is not able to tell whether or not you are currently infected with the hepatitis B virus.