Hepatitis B surface antibody is greater than 10mIU/mL, which is usually indicated as positive, indicating that the body has immunity against hepatitis B, which is a better phenomenon and can play a role in preventing hepatitis B virus infection. Hepatitis B surface antibody belongs to a kind of protective antibody, which can prevent hepatitis B virus from entering into the liver cells in the body to a certain extent, thus preventing hepatitis B virus infection. Hepatitis B surface antibody negativity is generally an index value of less than 10 mIU/mL, while positivity is generally greater than 10 mIU/mL. Under normal circumstances, if you have not received the hepatitis B vaccine or been infected with the hepatitis B virus, the results are usually negative. If you have been infected with the hepatitis B virus or have received the hepatitis B vaccine, the body will produce a specific immunity, and the hepatitis B surface antibody is positive. The occurrence of hepatitis B surface antibody greater than 10mIU/mL indicates that the body has specific immunity to the hepatitis B virus, and is able to effectively prevent the virus from being infected.