Hepatitis B is mainly transmitted through blood and body fluids, and it is important to minimize contact with blood and body fluids when living with a hepatitis B carrier. For example, if a healthy person has mouth ulcers, don’t kiss. If you are a couple, the one who does not have antibodies should be vaccinated against Hepatitis B. It is best to use condoms when having sex and prohibit coitus during menstruation. Kissing should not be too intense, and healthy people do not kiss when there is damage to the oral cavity, to avoid mucosal damage caused by transmission. Toiletries should be used exclusively, such as toothbrushes, razors and toiletries should be used separately. After accidental contact with the patient’s blood and body fluids, test for Hepatitis B surface antigen, Hepatitis B virus DNA, as well as Hepatitis B E antigen and Hepatitis B surface antibody, liver function immediately, and review in 3-6 months. Sex after marriage is more likely to be infected, it is recommended to go to the hospital for proper examination and vaccination, and pay attention to regular checkups.