Hepatitis B panel test: how to read it

The panel commonly includes markers for a surface antigen, a surface antibody, and a core antibody. The antigen helps assess whether virus is currently detected. The surface antibody can indicate protection after vaccination or recovery. The core antibody can suggest past or current exposure and is interpreted with the other findings. Reports may use reactive, non-reactive, positive, negative, or an index value, so the printed reference range matters.

A panel is not a symptom test. Hepatitis B can be silent, while fatigue or dark urine may occur in some people and can have other causes. Read about [Hepatitis B](/conditions/hepatitis-b/) and [Dark Urine](/symptoms/dark-urine/).

Ask for the full report rather than relying on a single word such as positive or negative. Your clinician will consider vaccination records, possible exposures, pregnancy, immune health, symptoms, and earlier results. They may repeat a marker, order additional testing, or request a [Liver Function Test](/treatments/diagnostics-and-screening/liver-function-test/) when liver inflammation is a concern. If the panel suggests you are not protected, discuss [Hepatitis B Vaccination](/treatments/preventive-care-and-vaccination/hepatitis-b-vaccination/).

Contact a clinician promptly after a recent blood or sexual exposure, or if you are pregnant and the result is unclear. Seek urgent assessment for yellow skin or eyes, severe abdominal pain, repeated vomiting, confusion, or fainting. Do not wait for symptoms after a known exposure.

Ask: Which markers were included? What does each result mean together with the others? Does my pattern show infection, immunity, or susceptibility? Do I need repeat testing? Should household or sexual contacts be tested or vaccinated?