Hepatitis B carriers are contagious, and there is a relationship between the amount of contagiousness and the value of hepatitis B DNA. Sexual contact is one of the main ways of transmission of hepatitis B. Therefore, marrying a person with hepatitis B virus requires proper attention. First of all, you need to do the five indicators of hepatitis B. If the surface antibody of hepatitis B is positive, such people are protective and generally will not be infected with hepatitis B, and do not need to worry too much. If the hepatitis B surface antibody is negative, then you need to be vaccinated in a timely manner, and the vaccine requires three injections. During the vaccination period, you need to pay attention to proper protection during sexual intercourse.