What should you know about not immune to hepatitis b?

This result is about protection against a virus that can affect the liver. It does not, on its own, diagnose an active hepatitis B infection or explain why immunity is absent.

Hepatitis B blood testing may look for different markers, including evidence of immunity, current infection, or past exposure. A result reported as not immune can occur when you have not been vaccinated, when a past vaccine response is no longer detectable on that test, or when the result needs to be interpreted alongside other markers.

Your clinician will consider the exact tests ordered, your vaccine record, work or household exposure, pregnancy status, and any recent potential exposure. The dedicated Hepatitis B page can help you understand the infection itself.

Bring any vaccination documentation to your appointment. Ask whether you need a hepatitis B vaccine series, a repeat test, or a fuller blood-test panel before vaccination. Do not assume that one result answers every question about past exposure or current infection.

Until you have a plan, avoid sharing needles, razors, toothbrushes, or other items that could carry blood. Use barrier protection during sex when there may be exposure to blood or body fluids. If you believe you were recently exposed, contact a healthcare professional promptly because the timing of care can matter.

Arrange medical advice promptly after a possible blood or sexual exposure to hepatitis B, even if you feel well. Seek urgent assessment for yellowing of the eyes or skin, very dark urine, pale stools, severe abdominal pain, repeated vomiting, confusion, or marked sleepiness.

Fatigue can have many causes, but new fatigue together with jaundice, nausea, dark urine, or upper abdominal discomfort deserves timely clinical review. A liver function test may be used with other tests to assess how the liver is working.

Ask which hepatitis B markers were tested, whether the result suggests vaccination is appropriate, and whether you need tests for current or past infection. Also ask whether your occupation, travel, household situation, pregnancy, medicines, or immune health changes the follow-up plan.

If you have already received hepatitis B vaccines, ask whether your documented doses and the timing of the blood test affect what happens next.