Hepatitis B is known as viral hepatitis B. Hepatitis B carriers typically continue to develop the virus past the age of 45, as hepatitis B carriers are usually lifelong carriers. Hepatitis B virus can be transmitted through blood, sex, and mother-to-child transmission, and once carried, the body is unable to remove it spontaneously. At present, no effective medicine has been researched to remove the hepatitis B virus, and the commonly used anti-hepatitis B virus medicines (such as entecavir, etc.) can only inhibit the replication of the virus, but cannot completely remove the virus. Therefore, hepatitis B virus carriers usually carry the virus for life and will not disappear as they age. Hepatitis B virus carriers are those who have the hepatitis B virus in their bodies, but the virus is in a quiescent stage and there is no immune response from the body, and the liver function is normal. Most hepatitis B carriers may not develop hepatitis throughout their lives, but some may develop viral hepatitis due to hepatitis B virus activity. Therefore, Hepatitis B virus carriers should go to the hospital regularly for medical checkups, such as liver function, Hepatitis B two-to-half, Hepatitis B virus DNA, tumor markers, and liver ultrasound. If abnormalities are found, liver-protecting and anti-viral treatments should be carried out in time.