What should you know about smoking and hepatitis B?

Hepatitis B is a viral infection that can inflame the liver. Some people clear the infection, while others develop long-term infection requiring regular review. Tobacco smoke exposes the body to chemicals that can affect blood vessels, immunity, and tissue repair. Alongside hepatitis B, this creates avoidable health strain and may make it harder to protect liver health.

Smoking-related symptoms can overlap with illness. Fatigue, poor appetite, or dark urine should not be dismissed as a smoking effect, especially when they occur with yellowing of the skin or eyes, nausea, abdominal discomfort, or unusual bleeding. A clinician can interpret symptoms with liver tests and hepatitis B monitoring.

Tell your clinician how much you smoke, whether you use shisha or nicotine products, and what has helped you cut down before. Set a quit plan with support, remove tobacco from usual routines, and ask whether medicines or nicotine replacement are suitable. Avoid alcohol unless your clinician says it is safe, and do not share razors, toothbrushes, or anything that may carry blood.

Keep scheduled liver reviews and take prescribed antiviral treatment exactly as directed. [Hepatitis B](/conditions/hepatitis-b/) explains the infection, while a [Liver Function Test](/treatments/diagnostics-and-screening/liver-function-test/) may be part of monitoring. Household and sexual contacts should ask about [Hepatitis B Vaccination](/treatments/preventive-care-and-vaccination/hepatitis-b-vaccination/).

Arrange prompt medical advice for new jaundice, worsening tiredness, vomiting, swelling of the abdomen or legs, confusion, or dark urine. Seek emergency care for vomiting blood, black stools, severe abdominal pain, marked drowsiness, or sudden confusion. If you are pregnant or have known liver scarring, report new symptoms without delay.

Ask how smoking affects your personal liver risks, which tests track hepatitis B activity, whether treatment is needed, and which quitting aid fits your medicines and health history. Ask how to protect people living with you and when their vaccination should be checked.