<unk>  is inflammation of the large intestine or colon, caused by the introduction of harsh<unk> s to the colon by an enema or other anorectal procedures.<unk>  can resemble ulcerative colitis, infectious colitis and pseudomembranous colitis endoscopically. Prior to 1950, hydrogen peroxide enemas were commonly used for certain conditions. This practice will often result in<unk> . Soap enemas may also cause<unk> . Harsh<unk> s, such as compounds used to clean colonoscopes, are sometimes accidentally introduced into the colon during colonoscopy or other procedures.  This can also lead to<unk> .<unk>  may trigger a flare of ulcerative colitis or Crohn's disease.
Chemical colitis
Allergic colitis
Drug-induced colitis
Microscopic colitis
Ischemic colitis
Pseudomembranous colitis
Ulcerative colitis
Radiation colitis