Hepatitis B surface antibody is more than 100, that is, the titer value of hepatitis B surface antibody is more than 100, indicating that the hepatitis B surface antibody is positive, there is no need to worry too much at this time, because under normal circumstances, the hepatitis B surface antibody titer value can also reach more than 100, indicating that the body has a certain degree of immunity to the hepatitis B virus. Hepatitis B surface antibodies are protective antibodies that prevent the hepatitis B virus from penetrating cell membranes and entering healthy liver cells. If only one of the five hepatitis B tests is positive, it may be because the person has received the hepatitis B vaccine and the vaccine has worked in the body to produce protective antibodies. If the hepatitis B core antibody or e antibody is also positive, it is often due to the fact that the test subject has been infected with the hepatitis B virus. After the infection, the body will produce hepatitis B surface antibody to protect the body from re-invasion of the hepatitis B virus because the immune system is functioning well or the hepatitis B virus has been cleared by treatment. Usually hepatitis B surface antibodies appear 3-6 months after infection and can last for many years. In addition, it is recommended that such people take protective measures by wearing masks and visiting less crowded places to avoid re-infection with the hepatitis B virus. Daily diet should be based on light, easy-to-digest foods, and moderate amounts of fresh fruits and vegetables rich in vitamins, such as apples and tomatoes, which help to strengthen the body and are beneficial to the body.