Hepatitis is when your liver becomes inflamed. Often, the cause is a virus that infects liver cells, such the hepatitis A, B, or C viruses. The infection may be short-lived (acute) or long-term (chronic), which means it lasts for at least 6 months.
Hepatitis damages the liver so it can’t filter bilirubin as well. Sometimes, certain drugs or autoimmune diseases (where your immune system attacks your own body) can cause hepatitis.