<unk>  is inflammation of the large intestine or colon, caused by the introduction of<unk> s or chemicals to the colon usually by the oral route but occasionally through the rectum. Non-steroidal anti-inflammatory<unk> s (NSAIDs) are the most common<unk> s implicated in<unk>  and also the most commonly used<unk> s worldwide.<unk>  can resemble ulcerative<unk> , infectious<unk>  and ischemic<unk>  endoscopically. Most cases of<unk>  resolve after stopping the offending medication.
Drug-induced colitis
Allergic colitis
Chemical colitis
Pseudomembranous colitis
Ulcerative colitis
Ischemic colitis
Microscopic colitis
Radiation colitis