Although the semen of a man with hepatitis B virus contains hepatitis B virus, only the sperm can enter the egg cell and develop into an embryo. Although semen contains the hepatitis B virus, it does not enter the egg cell and cannot infect the embryo with the hepatitis B virus, so the baby can be born normally. It is important to note that the semen of men with hepatitis B virus contains hepatitis B virus, which can be transmitted to the woman through sexual intercourse, and if the woman is infected with hepatitis B virus, it will increase the infection rate of the newborn baby.