Hepatitis B surface antigen is a substance produced by infection with the hepatitis B virus. Usually, hospitalization is not required if you are an ordinary hepatitis B carrier; if you are a severe hepatitis B carrier, hospitalization is required. 1. Ordinary Hepatitis B Virus Carrier: Hepatitis B is a chronic liver disease caused by persistent HBV infection, i.e. chronic hepatitis B. It is a chronic liver disease caused by persistent HBV infection. Its infectious ability varies according to the type. Ordinary hepatitis B virus carriers are generally not contagious, and their symptoms are not very obvious, and they can be recovered through regular medication, and generally do not need to be hospitalized. Normal life is enough, no need to worry too much. 2. Severe hepatitis B virus carriers: generally more than 300 aminotransferases or hepatitis B surface antigen 250 times higher than the normal level, then you need to be admitted to the hospital to carry out systematic liver function tests, and comply with the doctor’s instructions for medication. According to the strength of its infectiousness to determine whether the need for isolation treatment. Generally, after standardized treatment, the disease can return to normal, and the subsequent medication can be maintained for a period of time. Timely review of liver function, ultrasound and so on. Hepatitis B surface antigen infection needs to be hospitalized according to the symptoms and laboratory test results to determine, such as hepatitis B surface antigen suggest timely systematic examination, standardized treatment, so as not to delay the condition.