It is possible to have a baby even if both husband and wife have hepatitis B. Hepatitis B is an infectious disease contracted by the hepatitis B virus, which can be transmitted vertically to the fetus through mother-to-child transmission. Therefore, if the mother has hepatitis B, it is necessary to monitor the hepatitis B virus DNA load and liver function during pregnancy. After six months of pregnancy, mother-to-child blockade of hepatitis B is performed in a specialized maternity hospital to prevent causing vertical transmission to the fetus. Within six hours after the birth of the child, it is necessary to receive hepatitis B vaccine and hepatitis B immunoglobulin in time to prevent hepatitis B infection after birth.