Melena
Medical condition with dark feces that are associated with upper gastrointestinal bleeding
Nº Q1163908 ★★★
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Melena
Medical condition with dark feces that are associated with upper gastrointestinal bleeding
Melena is a form of blood in stool which refers to the dark black, tarry feces that are commonly associated with upper gastrointestinal bleeding. The black color and characteristic strong odor are caused by hemoglobin in the blood being altered by digestive enzymes and intestinal bacteria.
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From Wikipedia
Melena is a form of blood in stool which refers to the dark black, tarry feces that are commonly associated with upper gastrointestinal bleeding. The black color and characteristic strong odor are caused by hemoglobin in the blood being altered by digestive enzymes and intestinal bacteria. Iron supplements may cause a grayish-black stool that should be distinguished from melena, as should black coloration caused by a number of medications, such as bismuth subsalicylate (the active ingredient in Pepto-Bismol), or by foods such as beetroot, black liquorice, or blueberries.
Text: Wikipédia, CC BY-SA 4.0. · Image: Abdullah Sarhan (CC BY-SA 4.0) ·
