The condition belongs to HBsAg inactive carriers, which is in the viral clearance stage of chronic hepatitis B infection and generally does not affect the liver; if pregnant, the newborn should receive 10ug of hepatitis B vaccine and 100IU or more of hepatitis B immune globulin within 6 hours after birth, and again in the first month after birth, and the third time after 6 months of birth, with the hepatitis B vaccine administered to the anterior gluteal lateral muscles, which is the best prevention method available; if the newborn is born with hepatitis B immune globulin, he can be breastfed unless the mother has a broken nipple or bleeding. Caesarean section versus natural birth has no effect on hepatitis B transmission or not. The pregnant woman herself does not need any treatment.