causes hepatitis b
Hepatitis B: Causes, Symptoms and Treatment. Hepatitis B is an infection of the liver caused by the hepatitis B virus (HBV). It is a leading cause of chronic hepatitis, cirrhosis, and hepatocellular carcinoma. The virus is found in blood and body fluids and is transmitted through access to a non-infected individual's mucus membranes or bloodstream.
People who are at an increased risk of being infected with the hepatitis B virus include the following: 1  Men or women who have multiple sex partners, especially if they don't use a condom. 2  Men who have sex with men. 3  Men or women who have sex with a person infected with hepatitis B virus.  People with other sexually transmitted diseases.