Clinically, to see if there are hepatitis B antibodies, you need to do a hepatitis B two-to-one test. If the second item is positive, it means that there are hepatitis B surface antibodies, i.e., there are protective antibodies to avoid infection with the hepatitis B virus. If it is negative, it means that there is no hepatitis B surface antibody. If you have hepatitis B surface antibodies, you may have produced them on your own because the virus cleared after you were infected with the hepatitis B virus, or you have been vaccinated against hepatitis B. If you do not have hepatitis B surface antibodies, you can get hepatitis B surface antibodies by getting the hepatitis B vaccine. Hepatitis B vaccination requires three injections, and the process follows 0, 1, and 6 injections, i.e., one injection in the first month, one in the second month, and one in the sixth month. At the time of the first injection, 30% of people may be able to produce hepatitis B surface antibodies, but these antibodies are very unstable. 90% of people can produce hepatitis B surface antibodies at the time of the second injection, and 96% of people can produce hepatitis B surface antibodies at the time of the third injection.