Hepatitis B is a viral infection of the liver. It can resolve without treatment, or it may worsen and cause cirrhosis or liver cancer. A vaccine against the hepatitis B virus has been available since ...

The viral infection hepatitis B is transmitted through bodily fluids such as blood. There’s no cure for this common liver disease, but an effective vaccine and antiviral medications are available.

Hepatitis is the medical term for inflammation (swelling) in your liver. Hepatitis B is liver inflammation caused by infection with the hepatitis B virus (HBV). Inflammation can damage your liver.