What are the signs and symptoms 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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Symptoms are also important in identifying the source of bleeding. Young patients may present with abdominal pain, rectal bleeding, diarrhea, and mucous discharge that may be associated with IBD. However, elderly patients presenting with abdominal pain, rectal bleeding, and diarrhea may have ischemic colitis, or elderly patients with atherosclerotic heart disease may present with intermittent LGIB and syncope that may be due to angiodysplastic lesions. Stools streaked with blood, perianal pain, and blood drops on the toilet paper or in the toilet bowl may be associated with perianal pathology, such as anal fissure or hemorrhoidal bleeding.

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