The hepatitis B virus is transmitted through blood and body fluids, sexual contact and mother-to-child transmission, so extra care should be taken when working and living with a hepatitis B patient or hepatitis B carrier. The most effective way to prevent hepatitis B is to get vaccinated against hepatitis B. The common ways of transmission of hepatitis B virus are as follows: 1. Transmission of blood and body fluids: transfusion of blood or blood products, organ transplantation, surgery, dental surgery, hemodialysis, blood collection, injection and endoscopy and other medical procedures can lead to transmission. In addition, needle sticks, intravenous drug addicts and minor injuries to the skin and mucous membranes can also lead to infection; 2, sexual contact transmission: unprotected sexual contact with hepatitis B virus-positive people can be infected, especially those with multiple sexual partners have a higher chance of infection, in prostate fluid, semen and vaginal secretions and other body fluids contain the virus; 3, mother-to-child transmission: mother-to-child transmission includes intrauterine infection, perinatal transmission, breastfeeding or The transmission from mother to child includes intrauterine infection, perinatal transmission, breastfeeding or close contact transmission. Perinatal transmission is the main route of mother-to-child transmission and often occurs when the newborn’s broken skin and mucous membranes come into contact with the mother’s blood during delivery. Part of the transmission is from mother to infant by horizontal transmission, caused by close contact between the infant and mother in daily life.