What is the role of benign anorectal disease in lower GI bleeding (LGIB)?

Updated: Jul 26, 2019
  • Author: Burt Cagir, MD, FACS; Chief Editor: BS Anand, MD  more...
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Benign anorectal disease (eg, hemorrhoids, anal fissures, anorectal fistulas) can cause intermittent rectal bleeding. Massive rectal bleeding due to benign anorectal disease has also been reported. A review of the Department of Veterans Affairs (VA) database revealed that 11% of patients with LGIB had hemorrhage from anorectal disease. [13]

Postpolypectomy hemorrhage is reported to occur in 0.1%-3% of patients up to 1 month following colonoscopic polyp resection.

Various small intestinal conditions, such as Crohn disease, Peutz-Jeghers syndrome, hemangiomas, and small intestinal adenocarcinomas, may cause small intestinal bleeding, but these hemorrhages are usually occult in nature.

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