Hepatitis B surface antibody 50 can get booster shot. Hepatitis B surface antibody 50 indicates that there is a certain strength of protective antibody in the body, but the potency of the antibody is relatively weak, in order to prevent hepatitis B, you can get a hepatitis B booster shot to promote the increase of the potency of the antibody. Hepatitis B antibody 50 can go to the community hospital to get a booster injection of hepatitis B vaccine, the general dose is 60ug, after the injection of hepatitis B vaccine booster injection, can promote the antibody potency increased significantly, it is recommended that one month after the vaccine to go to the re-examination. At present, the most effective way to prevent hepatitis B virus infection is to inject hepatitis B vaccine to produce protective antibodies. If you have a family member with hepatitis B, you should get vaccinated as soon as possible, and have regular checkups for hepatitis B 2.5.