Colitis is an inflammation of the lining of the colon. A person with colitis will typically experience abdominal pain, discomfort, and diarrhea. People with colitis may experience mild chronic pain or ...

Colitis occurs when your colon, or large intestine, is inflamed. Microscopic colitis is a type of colitis that’s best identified by looking at colon cells under a microscope. The main subtypes of ...