If you live with a hepatitis B patient, you should pay attention to the following aspects: 1. You should do the five hepatitis B tests to see if you have hepatitis B surface antibodies, and if all are negative, you should be vaccinated against hepatitis B as early as possible; 2. You should use special toiletries, such as toothbrushes, razors and toiletries separately; 3. You should wash your hands with soapy water and running water after contacting the patient; 4. You should use condoms when you have sexual contact; 5. Accidental contact with After accidental contact with the patient’s blood and body fluids, hepatitis B virus DNA, hepatitis B surface antigen, as well as hepatitis B surface antibody, hepatitis B E antigen and liver function should be tested immediately and rechecked within 3-6 months. If hepatitis B vaccination has been given and the hepatitis B surface antibody is known to be ≥10 IU/l, special treatment may not be required. If you have not received hepatitis B vaccine, or if you have received hepatitis B vaccine but have hepatitis B surface antibody <10IU/l, or if the level of hepatitis B surface antibody is unknown, you should immediately receive hepatitis B immunoglobulin and hepatitis B vaccine, and receive the second and third doses of hepatitis B vaccine 1 month and 6 months later, respectively.