Your 13 year old sons serum hepatitis B surface ab came back reactive what does this mean?

A reactive hepatitis B surface antibody test indicates that your 13-year-old son has been exposed to the hepatitis B virus (HBV) and has developed antibodies against it. This means that he is immune to the virus and cannot be infected again.

Hepatitis B is a serious liver infection that can cause liver damage and scarring (cirrhosis). It can also lead to liver cancer. The hepatitis B vaccine is very effective at preventing infection with the HBV, and it is recommended for all children and adolescents.

If your son has not been vaccinated against hepatitis B, he should get vaccinated as soon as possible. The vaccine is given in a series of three shots over a period of six months.

It is important to talk to your son about hepatitis B and the importance of getting vaccinated. You should also make sure that he gets regular blood tests to monitor his liver health.