Colitis meaning: Colitis is swelling (inflammation) of

Colitis is swelling (inflammation) of the large intestine (colon). Colitis is inflammation of the large intestine that can be acute or chronic. Learn about the different types of colitis , such as ulcerative colitis , Crohn's disease, infectious colitis and more, and how they are diagnosed and treated. The term colitis refers to inflammation of the colon. It may be associated with enteritis (inflammation of the small intestine), proctitis (inflammation of the rectum), or both.