What should you know about causative organism of hepatitis b?

Hepatitis B virus enters the bloodstream and targets liver cells. The immune response to the infection can cause inflammation, while some people have few or no early symptoms. Others develop tiredness, nausea, discomfort under the ribs, yellowing of the skin or eyes, or dark urine. Infection may be acquired around birth, through sexual contact, or through blood exposure such as shared injecting equipment or unsterile instruments. It is not spread by ordinary casual contact such as sharing a meal.

Arrange medical advice for a possible blood or body-fluid exposure, a partner or household diagnosis, or symptoms that could involve the liver. Blood tests can show whether infection is present and whether the liver is inflamed; a liver function test may be part of the assessment. Do not donate blood, share razors or toothbrushes, or share injecting equipment until advised. Vaccination protects people who have not been infected and is especially important for babies and people with ongoing exposure risk.

Seek prompt medical care for yellow eyes or skin, dark urine with marked fatigue, persistent vomiting, increasing abdominal swelling, confusion, or unusual bleeding. After a recent exposure, contact a clinician quickly because preventive care may be time-sensitive. Emergency help is needed for severe confusion, fainting, or vomiting that prevents drinking.

Ask which blood tests are needed, whether vaccination or post-exposure treatment is appropriate, and how to protect partners and household members. If infection is confirmed, ask how liver monitoring and follow-up will be arranged.