Autoimmune hepatitis is a long-term disease that makes the body's defenses (or immune system) attack the liver. This causes liver inflammation and damage.

Sometimes chemicals, certain medicines, or a virus can cause cells in your body to attack your liver. People who have another autoimmune disease may have a higher chance of developing autoimmune hepatitis.

Autoimmune hepatitis can be treated successfully with medicine. Some people may need a liver transplant.