Hepatitis B is a disease that I think we are not unfamiliar with. Hepatitis B is an infectious disease caused by chronic inflammation, necrosis and fibrosis of the liver due to the infection of hepatitis B virus, which is contagious, once infected, it will affect people’s quality of life and bring economic burden to the family, and a part of the patients can be developed into cirrhosis or even hepatocellular carcinoma, which is very harmful to the health and life of our patients, and it has become a serious social public health problem, and it is a national priority disease to be prevented and controlled. It has become a serious social and public health problem and is a national priority disease. Therefore, it is necessary to know about the transmission route and prevention knowledge of hepatitis B to enhance our awareness of preventing hepatitis B from occurring. So what are the ways of transmission of hepatitis B? There are three main ways: transmission through blood, mother-to-child and sexual contact. First, blood transmission There are the following possible ways of transmission: 1 through the transfusion of blood and blood products infection; 2 the use of poorly sterilized syringes, needles, street extractions, especially injecting drugs, the repeated use of syringes and needles can be easily infected; 3 tattoos, earring holes can be infected; 4 shared use of a shaver and toothbrush can be infected; 5 go to the hospital to do a gastroscopy, colonoscopy and other examinations, through the Broken mucous membranes may be transmitted; 6 medical personnel work by needle-stick injuries, skin breakage may also be infected. Second, mother-to-child vertical transmission Pregnant women are a hepatitis B patient, and the virus level is relatively high, it can be transmitted to children through three ways, one is intrauterine infection, transmitted through the placenta during pregnancy; second, when pregnant women give birth, the baby’s skin or mucous membranes are damaged, and the baby is infected by contact with the mother’s blood, amniotic fluid, and secretions; and third, it is infected through breastfeeding or close contact after delivery. Third, sexual transmission Unprotected sexual contact with HBV-positive patients, especially those with multiple sexual partners, the risk of infection is higher. HBV is not transmitted through the respiratory and digestive tracts, so daily study, work or living contact, if there is no skin mucous membrane breakage, generally not infected with HBV. but if your oral mucous membrane is damaged, then common meals, there is a risk of infection. Once we know how hepatitis B is transmitted, we can prevent it in our lives. The best way to prevent it is to block the transmission route, and hepatitis B vaccination is the most effective way. Hepatitis B can be transmitted from mother to child, so whether the mother of a hepatitis B patient can give birth to a child is a very realistic question. Hepatitis B can be normalized if the liver function is normal. However, in order to solve the blockage of mother-to-child transmission, the current application of the blockage method, firstly, after the birth of the child, within 12 hours, or within 6 hours, in different parts of the as soon as possible injection of hepatitis B high-valence immunoglobulin and hepatitis B vaccine; secondly, you can try to apply the antiviral treatment under the guidance of the physician to carry out the blockage method. Taking the blocking method can prevent most babies from being infected with Hepatitis B.