Hepatitis B is a virus that is feared and even avoided. They are afraid that they can catch the hepatitis B virus by shaking hands or talking to each other. Social discrimination also makes hepatitis B patients lose their friends and some of their jobs. Hepatitis B virus has the following ways of transmission: 1, mother-to-child vertical transmission: mother-to-child transmission includes two aspects, one is vertical transmission, and the other is horizontal transmission. One of them is vertical transmission, and the other is horizontal transmission. Vertical transmission from mother to child is the main one. 2, blood transmission: blood transfusion, repeated use of syringes infected by hepatitis B virus, broken skin and mucous membranes can be infected with hepatitis B virus; in the process of examination and treatment in hospitals due to the use of non-strictly sterilized and repeated use of HBV-contaminated medical equipment caused by infection, belonging to the medical transmission, including surgical and dental instruments, blood collection needles, acupuncture needles and endoscopes, and so on. At present, with the development of medical level, this situation is rare. 3, sexual contact transmission: husband and wife, if one of them is hepatitis B patient or hepatitis B virus carrier, the other party should get hepatitis B vaccination in time to get antibodies, so as not to infect the hepatitis B virus in the process of intimate contact. In addition, body fluids of hepatitis B patients are infectious, body fluids include semen, vaginal secretion, breast milk, blood, lymphatic fluid, amniotic fluid, etc. These are all human body fluids, as long as the body fluids contain hepatitis B virus, they are infectious. Therefore, hepatitis B virus is mainly transmitted through the above ways, in order to prevent it, we also need to have regular medical checkups, timely vaccination, good hygiene habits, self-esteem and self-love, and so on.