Viral hepatitis is the inflammation of the liver caused by virus. It is also called as infectious hepatitis.
Noninfectious hepatitis is mainly due to alcohol, some drugs and chemicals, metabolic disorders, autoimmune diseases and obesity.
It can present in acute (less than 6 months) and chronic states (more than 6 months)
Commonly three types of hepatitis viruses are seen which are Hep A virus, Hep B virus and Hep c virus.