Colitis is a digestive disease characterized by inflammation of the colon.
A well known subtype of infectious colitis is pseudomembranous colitis, resulting from infection by a toxigenic strain of Clostridium difficile. Parasitic infections can also cause colitis.
Any colitis which has a rapid downhill clinical course is known as fulminant colitis. In addition to the diarrhea, fever, and anemia seen in colitis, the patient has severe abdominal pain and a clinical picture similar to septicemia with shock is present. Approximately half of those patients require surgery.
Irritable bowel syndrome is a separate disease which has been called spastic colitis or spastic colon. This name causes confusion since colitis is not a feature of irritable bowel syndrome.
Autistic enterocolitis is a disputed medical entity but refers to a type of colitis found in patients with autism.
Some have found a change in diet to be effective at treating the symptoms of colitis, especially reducing the intake of carbohydrates. This approach has been championed by Elaine Gottschall.