Generally speaking, hepatitis B antiviral treatment viral DNA below the lower limit of detection is a phenomenon of physical turnaround, indicating that the hepatitis B virus in the patient’s body has basically been unable to replicate, and is less contagious. The higher the actual value of hepatitis B virus DNA quantification, the more infectious it is. Under normal circumstances, the lower limit of hepatitis B virus DNA quantification is about 1,000copies/mL. If after antiviral treatment, the hepatitis B virus DNA is less than 1,000copies/mL, then it means that the level of hepatitis B virus in the body has been reduced and the treatment is effective. If the patient has been taking antiviral drugs, then it means that the drugs are effective and can continue to take them under the guidance of the doctor, which commonly used drugs include entecavir dispersible tablets and tenofovir disoproxil fumarate tablets, etc., so as to promote the recovery of the disease. Patients are advised to maintain a healthy lifestyle and diet, eat more fresh vegetables and fruits, reduce spicy and greasy food, quit smoking and drinking, rest more, and try not to stay up too late to avoid recurrence of the disease.