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26 سنوات
Why when i poo it is very black ( very dark black not even dark brown )?
26 ديسمبر 2014
رأي ثانوي

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د. Zakia Dimassi طب الأطفال

Black tarry stools, the medical term for which is melena, usually results from bleeding from the upper parts of the gastrointestinal tract (GI tract), be it from the mouth, esophagus, stomach, or the duodenum (1st segment of the small intestines). Other causes include eating black licorice, being on iron pills, medications containing Bismuth, or blueberries. 

Bleeding in the upper part of the GI tract will usually
cause black stools due to:



  • ·        
    Abnormal blood vessels
  • ·        
    A tear in the esophagus
    from violent vomiting (Mallory-Weiss tear)
  • ·        
    Bleeding ulcer in the
    stomach
  • ·        
    When blood supply is cut
    off to part of the intestines
  • ·        
    Inflammation of the stomach
    lining (gastritis)
  • ·        
    Trauma or foreign body
  • ·        
    Widened, overgrown veins
    (called varices) in the esophagus and stomach
In order to identify the exact underlying cause, a thorough investigation, including a detailed history of the complaint and any associated symptoms with identification of risk factors for any of the above mentioned possibilities, in addition to physical examination and some lab tests, are necessary.
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