Hepatitis B

Hepatitis B is irritation and swelling (inflammation) of the liver due to infection with the hepatitis B virus (HBV).

Other types of viral hepatitis include hepatitis A, hepatitis C, hepatitis D, and hepatitis E.

Hepatitis B virus

Hepatitis B is also known as serum hepatitis and is spread through blood and sexual contact. It is seen with increased frequency among intravenous drug users who share needles and among the homosexual population. This photograph is an electronmicroscopic image of hepatitis B virus particles. (Image courtesy of the Centers for Disease Control and Prevention.)

Digestive system

The esophagus, stomach, large and small intestine, aided by the liver, gallbladder and pancreas convert the nutritive components of food into energy and break down the non-nutritive components into waste to be excreted.

Chronic hepatitis

Chronic hepatitis is a liver disease caused by infection, drug ingestion, metabolic or autoimmune disorders. Necrosis (death) of liver cells, inflammation, and fibrosis that occur in chronic hepatitis may lead over time to liver failure.

Hepatitis B

The hepatitis B vaccine is recommended for healthcare workers, people who live with someone with hepatitis B, and others at higher risk. The hepatitis B virus can damage liver cells. Immunization is also recommended for all infants and unvaccinated adolescents.

Causes

Symptoms

Exams and Tests

Treatment

Support Groups

Outlook (Prognosis)

When to Contact a Medical Professional

Prevention