The treatment of pregnant women with a relatively high number of hepatitis B virus is divided into two cases: one is normal liver function, which is often referred to as hepatitis B carriers, such patients are mainly mother-to-child blocked to reduce the chances of transmission to the baby. In the later stages of pregnancy, around 24-28 weeks, oral antiviral drugs can be administered, the preferred drug is tenofovir, which can be discontinued immediately after the birth of the baby. Another condition is abnormal liver function, if the liver function is abnormal due to hepatitis B activity, which is often referred to as chronic hepatitis B. For such patients, timely antiviral treatment is required, otherwise the burden on the liver of the pregnant woman will gradually increase as her age increases, and some pregnant women may experience serious damage to liver function, or even life-threatening heavy hepatitis.