If the titer of hepatitis B surface antibody is more than 10mIU/mL, it means that there is a self-immune protection mechanism in the body, which is immune to chronic viral hepatitis B. However, after the vaccination, the patient will be consumed slowly for 10 years. However, after injecting hepatitis B vaccine, patients will slowly consume it in about 10 years. Therefore, for normal people who have received hepatitis B vaccine, blood should be drawn every 10 years to check the hepatitis B tri-system, to see the titer of hepatitis B surface antibody and whether it is positive or not, and if necessary, patients need to actively consider injecting hepatitis B vaccine to strengthen. If the patient’s hepatitis B surface antibody titer is lower than 10mIU/mL or negative, then we should directly consider hepatitis B vaccination, and one month after the vaccination, the patient should draw blood to check the hepatitis B triple system. If the hepatitis B surface antibody titer is more than 10mIU/mL, the patient can continue to observe, usually pay attention to rest, do not drink alcohol, do not stay up late, do not labor.