What does a positive hepatitis B surface antigen (HBsAg) test result mean?
Disease description:
I am 29 years old. During a recent company health examination, I was told that I am hepatitis B surface antigen positive. However, I have never heard of being hepatitis B surface antigen positive before. May I ask, what does hepatitis B surface antigen positive mean?
Doctor's answer (1)
Dr. Yang Ziqi
A positive hepatitis B surface antigen (HBsAg) test result indicates the presence of the outer protein coat of the hepatitis B virus, which serves as a marker for hepatitis B infection. HBsAg typically appears early during infection and may persist through the acute or chronic phase of infection. If HBsAg remains positive for more than 6 months, it generally indicates that the individual has developed chronic hepatitis B.
Transmission of hepatitis B occurs through contact with infected blood, sexual activity, and from mother to child during birth. Individuals testing positive for HBsAg require further testing, such as hepatitis B e antigen (HBeAg) and hepatitis B surface antibody tests, to determine the infection status. In cases of chronic infection, regular monitoring of liver function may be necessary, and antiviral therapy might be considered depending on the clinical condition.
Maintaining healthy lifestyle habits and promptly informing healthcare providers of your condition is important so they can implement necessary preventive measures to avoid transmitting the virus to others. If you have concerns, it is recommended that you seek medical advice promptly.
