What does “weakly positive hepatitis B surface antigen (HBsAg)” mean?

Dec 02, 2021 Source: Cainiu Health
Disease description:

A few days ago, my company organized a physical examination, and the results indicated that my hepatitis B surface antigen (HBsAg) was weakly positive. What does “weakly positive hepatitis B surface antigen” mean?

Doctor's answer (1)
Dr. Jin Zhongkui
A weakly positive hepatitis B surface antigen (HBsAg) is a serological marker indicating hepatitis B virus (HBV) infection. For patients with a weakly positive HBsAg, it is essential—following confirmation of HBV infection—to assess liver function and quantify HBV DNA to monitor disease activity and stability. If abnormalities in liver function or HBV DNA levels are detected, antiviral therapy should be initiated based on clinical assessment. Additionally, patients should maintain moderation in daily activities, follow a light and balanced diet, and ensure adequate rest to avoid exacerbating the condition and to support recovery.