Crohn's disease extends into the deeper layer of the intestinal wall. The most common symptoms of ulcerative colitis are abdominal pain and bloody diarrhea.
Ulcerative colitis involves only the large intestine, or colon.
The cause is not known current theory is that a virus or an atypical bacterium, causes an inflammatory reaction in the intestinal wall. UK Reviewed sites. Disease Pages Links 2. Ulcerative colitis Manageable, with a brighter outlook 3. These pages are selected randomly from the net and will be occasionally updated.