What should you know about hepatitis B causes, symptoms and treatment?

The virus may pass during sex, through shared needles, with unsterile tattoo or piercing equipment, or from an infected parent to a baby around birth. It can remain unnoticed, or cause tiredness, nausea, appetite loss, fever, upper-abdominal discomfort, yellow eyes or skin and dark urine. Fatigue is a possible presentation of hepatitis B, while fatigue by itself cannot establish the diagnosis.

Clinicians use blood tests to identify infection and understand whether it is recent or ongoing. A liver function test can show how the liver is responding. Results, symptoms and the person’s overall health guide the care plan.

Some recent infections are managed with monitoring, fluids, rest and advice about protecting the liver. Ongoing infection may need specialist follow-up and antiviral medicine for some people; treatment decisions depend on blood results and liver findings. Avoid alcohol, do not share razors or toothbrushes, cover cuts, and use condoms until a clinician explains your status. Contacts may need testing or hepatitis B vaccination.

Seek prompt care after a possible recent exposure or if jaundice, dark urine, repeated vomiting, severe abdominal pain, confusion or unusual drowsiness develops. Emergency services are appropriate for collapse, severe bleeding or difficulty waking. Do not wait for symptoms after a significant exposure, because early advice can affect preventive options.

Ask whether your results suggest a recent or ongoing infection, which liver tests are next, whether antiviral treatment is indicated, and how often monitoring is needed. Also ask how to protect partners and household members and whether they should receive vaccination.