DNA quantitative refers to the quantitative test of hepatitis B virus DNA, and generally the result is less than 500 copies/mL, which is within the normal range. Hepatitis B DNA viral quantitative test results reflect the presence of hepatitis B virus replication in the body of the subject, if more than 500 copies/mL, it means that the virus in the patient’s body is in the state of proliferation, and at this time, we need to decide whether or not to carry out antiviral treatment according to the patient’s specific condition. If it is within 500 copies/mL, it means that the virus is not active in the patient’s body, and at this time, antiviral treatment can be temporarily avoided, and regular follow-up can be done. Chronic hepatitis B is a contagious disease, if the condition is not stabilized, it may progress to cirrhosis, liver cancer and other serious diseases, therefore, patients with small triple yang need to do regular follow-up, according to the condition of the patient to receive the correct treatment.