Condition overview
Hepatitis B
Hepatitis B is a viral infection affecting the liver. Vaccines are widely available.
Type
Viral
Vaccine
Available
Typical sample
Blood
This content is for general educational purposes and is not a substitute for diagnosis, treatment, or personalized medical advice from a qualified healthcare professional.
Overview
Hepatitis B is a viral infection affecting the liver. Vaccines are widely available.
Symptoms
- Often no symptoms
- Fatigue
- Jaundice
- Abdominal discomfort
Seek immediate medical care for severe symptoms, significant pain, heavy bleeding, difficulty breathing, loss of consciousness, or other urgent concerns.
Transmission
- Blood exposure
- Sexual contact
- Perinatal transmission
Testing options
- Blood tests for surface antigen and antibodies
Testing window: Testing timing depends on the marker — typically weeks to months after exposure.
Treatment
Some infections resolve on their own; chronic cases are managed with antiviral therapy under clinical guidance.
Possible complications
- Chronic liver disease if untreated
Partner considerations
Partners should be tested and vaccinated where appropriate.
Prevention
- Vaccination
- Barrier methods
- Safe injection practices