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Ulcerative Colitis Underlying Cause
The exact cause of ulcerative colitis is unknown. Ulcerative colitis may be caused by an abnormal immune system, which normally fights infection. The immune system mistakenly attacks the colon, causing inflammation. Images

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Last Updated: Aug 19, 2008  References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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