Hepatitis B qualitative only 2 positive, quantitative how to become 25 positive, consider the infection of hepatitis B virus. If hepatitis B 5 item 2 is positive, it means that the hepatitis B antibody is produced; while 25 items are positive, it means that the hepatitis B virus has been infected in the past, and the antibody that has been produced is in the recovery period. However, it is necessary to check the titer of antibody, if the titer is too low, it may not be able to play a protective role, and it is necessary to inject hepatitis B vaccine or hepatitis B immunoglobulin to strengthen the titer of antibody in time. It is recommended that patients closely observe, if it is a previous infection, there is still immunity, there is no need to worry too much, it is a good phenomenon, if it is the recovery period also do not need to deal with, generally can be cured by themselves.