Rectal Bleeding (cont.)
IN THIS ARTICLE
Rectal Bleeding Tumors, Polyps, and Other Causes
Tumors and polyps
Polyps: Lumps of tissue or polyps bulge out from the lining of the colon. Bleeding occurs when large polyps develop, which can be hereditary. Usually harmless, some types can be precancerous.
Trauma: Rectal bleeding from a traumatic cause is always a critical concern. Rectal damage from a gunshot wound or foreign body insertion can result in extensive infection or rapid and fatal blood loss. Prompt emergent evaluation is necessary.
Upper gastrointestinal source: A common source of rectal bleeding is bleeding from the upper gut, usually the stomach or duodenum. This can occur after someone has swallowed a foreign object that causes injury to the stomach lining, bleeding stomach ulcers, or Mallory-Weiss tears. (Mallory-Weiss tears are cuts or ruptures of vessels in the lining of the esophagus or stomach. They are usually due to continuing or forceful vomiting.)
Meckel diverticulum: A rare condition, where gastric lining is found in an inappropriate location of the gastrointestinal tract. As a result, the gastric acid secreted from this lining erodes tissue and ultimately causing hemorrhage.
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