People with hepatitis B are allowed to have sex. However, for hepatitis B patients, their sexual partners need to be further checked for the five indicators of hepatitis B. If the hepatitis B surface antibody is positive, they have protective antibodies and are generally not infected with hepatitis B. If the hepatitis B surface antibody is negative, they need to get the hepatitis B vaccine. If the hepatitis B surface antibody is negative, then you need to get the hepatitis B vaccine. The hepatitis B vaccine requires three shots, one at present, one in a month, and one in six months. After the three shots, you need to check if you have hepatitis B antibodies. During this six-month period, when having sex, you need to do the necessary protective measures, the main protective measure is to wear a condom, every time you have sex, so that you can effectively avoid cross-infection.