You do not need to register for the hepatitis B vaccination, you can go directly to the prevention clinic or the community clinic, but before going to these two clinics, you should go to the hospital to register for any of the general hospital departments, or the hepatology department of the infectious disease hospital, and check the five items of hepatitis B after registration. If the first of the five hepatitis B items is positive for hepatitis B surface antigen, it means that you are already infected with the hepatitis B virus, so you do not need to get the hepatitis B vaccine, but need further systematic laboratory tests and further treatment. If the hepatitis B surface antigen is negative and the second hepatitis B surface antibody is also negative, it indicates that no antibodies have been produced and the hepatitis B vaccine is needed. In this case, depending on the amount of antibodies, it is determined whether one or three shots should be given. If the hepatitis B surface antibody, which is the second positive item, the hepatitis B vaccination is not required.