Pregnant women with hepatitis B can also become pregnant. Pregnant women with hepatitis B virus can be given hepatitis B blocking drugs within 12 hours after the birth of the newborn, and the success rate of the blocking can reach about 95%, and the other 5% may be infected in the womb through various means by contacting the blood of the mother with the hepatitis B virus. Therefore, in order to ensure that the affected child is not infected with hepatitis B virus, antiviral drugs can be given to pregnant women during pregnancy. Tenofovir is currently considered to be used in pregnant women, and no risk that tenofovir can cause fetal malformation has been found. To ensure the safety of the fetus, oral antiviral drug therapy can also be started in the late stages of pregnancy. When applying antiviral drugs to pregnant women, full communication with the pregnant woman is required for awareness.