What are the possible clinical presentations 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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The clinical presentation of LGIB varies with the anatomical source of the bleeding, as follows:

  • Maroon stools, with LGIB from the right side of the colon

  • Bright red blood per rectum with LGIB from the left side of the colon

  • Melena with cecal bleeding

In practice, however, patients with UGIB and right-sided colonic bleeding may also present with bright red blood per rectum if the bleeding is brisk and massive.

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