What is the role of IBD in the etiology of lower gastrointestinal (GI) bleeding (LGIB)?

Updated: Jul 26, 2019
  • Author: Burt Cagir, MD, FACS; Chief Editor: BS Anand, MD  more...
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Although IBD due to Crohn disease or ulcerative colitis causes LGIB, it is rarely a massive hemorrhage. Ulcerative colitis can cause mild to moderate bloody diarrhea in about 50% of patients, with an estimated 4% of patients experiencing massive bleeding. In Crohn disease, massive bleeding is less common, occurring in about 2% of patients with Crohn colitis.

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