What should you know about hepatitis B viral infection?

The hepatitis B virus enters the body through infected blood or certain body fluids and can inflame liver tissue. Some people have no noticeable symptoms. Others develop tiredness, nausea, reduced appetite, discomfort under the ribs, yellowing of the skin or eyes, or dark urine. Fatigue and dark urine can have many causes, so they do not by themselves confirm hepatitis B.

A blood test can show whether infection is present, whether the immune system has responded, and whether the virus is active. A clinician may also use a Liver Function Test to look for signs of liver inflammation. Results are interpreted together rather than from one marker alone.

Arrange a medical review if you have had a possible exposure, symptoms, or an unexpected hepatitis result. Ask which blood tests are needed and when they should be repeated. Until you receive advice, do not share razors, toothbrushes, needles or anything that may carry blood. Cover open cuts and tell healthcare professionals about a possible infection.

Hepatitis B Vaccination helps prevent infection and may be recommended for people who have not completed vaccination or who have increased exposure risk. A clinician can explain whether vaccination, monitoring or antiviral treatment is appropriate for your situation.

Seek urgent medical help for yellow skin or eyes with confusion, severe vomiting, marked drowsiness, bleeding, or rapidly worsening illness. Contact a clinician promptly after a recent blood or body-fluid exposure, because preventive treatment may be time-sensitive. Ongoing fatigue, dark urine, abdominal swelling or unexplained weight change also deserves assessment.

Ask: Which hepatitis B markers were tested? Do I need a Liver Function Test or repeat blood work? Could I have a recent or long-standing infection? Should household or sexual contacts be tested or vaccinated? What precautions should I take, and how often should my liver health be reviewed?