This test detects Hepatitis B surface antigen (HBsAg) in your blood, a key marker of an active Hepatitis B infection. HBsAg appears in the early stages of infection and may indicate either an acute or chronic infection, even in the absence of symptoms. Identifying this antigen helps assess whether the virus is currently present and transmissible.

Useful for individuals at risk of exposure, those experiencing liver-related symptoms, or anyone seeking clarity on their Hepatitis B status.

Read our complete guide to Hepatitis B Surface Antigen (Active Infection) →