It is theoretically possible to breastfeed a person who is a carrier of hepatitis B major. First of all, the amount of virus in breast milk is very low. Secondly, the hepatitis B virus is basically not transmitted through the digestive tract. Once again, the child will be vaccinated with hepatitis B immunoglobulin and hepatitis B vaccine after birth, which can promote the production of hepatitis B antibodies in the body, and breastfeeding will be possible after birth. If the baby has ulcers in the mouth, such as thrush, and the mother’s nipples are ruptured and bleeding, the virus may invade the baby’s body through the broken oral mucosa and infect the baby with hepatitis B. In this case, breastfeeding should be stopped and breastfeeding should be resumed after the thrush is completely cured.