General entry physical examinations, as well as civil service physical examinations and institutional physical examinations, will check the hepatitis B three system. If the patient has hepatitis B, generally the hepatitis B surface antigen is positive. The specific depends on the results of the examination, in addition to the requirements of the unit, whether it is linked to hepatitis B, especially in the catering industry, hepatitis B virus, if it is a major triple-positive, will affect professional qualifications as well as entry into the job. For the hepatitis B three system examination, if the patient is a small triple-positive, generally do not need to deal with, continue to observe. If the patient is a major triple-positive, the hepatitis B DNA needs to be further checked to see if the virus has replicated. If there is a combination of liver function damage, this is the window period of viral replication, you need to further antiviral active treatment. Generally, after antiviral treatment, some patients may turn negative, or from major triplet to minor triplet, and their infectiousness will slowly decrease. During this period, patients should pay attention to more rest, avoid staying up late, avoid straining, and especially do not drink alcohol.