Generally speaking, there is no obvious precursor to hepatitis B surface antigen conversion.
If the patient is infected with hepatitis B virus, the quantitative amount of hepatitis B surface antigen in the body will be higher and positive. Although the probability of this indicator turning negative is relatively low, and the patient does not have any obvious signs, but as long as the condition is not particularly serious, timely antiviral treatment, and the health condition is relatively good, then it is possible to turn negative.
Generally speaking, before the surface antigen of hepatitis B becomes negative, the gene of hepatitis B virus will gradually disappear and the e antigen will become negative, so that the level of surface antigen of hepatitis B will gradually decrease until it falls below the normal level.
During this time, the hepatitis B surface antigen titer will show a significant decrease. Once the Hepatitis B surface antigen titer drops below 0.05 mIU/mL, then the Hepatitis B surface antigen has turned negative.
However, hepatitis B surface antigen negative does not mean that there is no more hepatitis B virus in the patient’s body, and it is still necessary to strengthen the daily care, maintain healthy living and dietary habits, and go to the hospital for regular checkups, so as to better control the development of the disease.