Breastfeeding is possible in patients with hepatitis B teratitis B, but there are some conditions: the child has been vaccinated against hepatitis B and injected with hepatitis B immunoglobulin within 12 hours of birth, and the mother’s hepatitis B virus DNA quantification is negative at this time and the aminotransferase enzyme is normal. Breastfeeding is not recommended in any of the following cases: 1. The mother’s breast milk is positive for Hepatitis B DNA or positive for Hepatitis B antigen, and the child is at greater risk of infection if breastfeeding. 2. If the child has damage in the mouth, esophagus or gastrointestinal tract, the hepatitis B virus can be transmitted through the damaged parts, so breastfeeding is not recommended. 3. Breastfeeding is also not recommended when the mother is taking antiviral drugs (such as entecavir). Specific feeding methods are recommended to be carried out under the guidance of professional physicians.