What Causes Black Diarrhea ?

What Causes Black Diarrhea ?

When there is bleeding in your upper gut, the result is usually what is known as black diarrhea. There may be other causes for this condition too, like bleeding in the proximal colon or the small bowel. It may happen due to medication like iron supplements, food or minerals in the body.

Even multivitamin tablets with iron may lead to black diarrhea, and so can black or dark blue colored foods like blueberries, black licorice, lead and Pepto-Bismol. Apart from the above mentioned causes, there may be what are known pseudo causes or those that have nothing to do with a bleeding gut that could result in black diarrhea -- ingesting blood from the lungs or haemoptysis, nose bleeding or epistaxis, too much oral bleeding and consuming huge quantities of foods that are rich in iron.

Then there may be complications related to the esophagus or esophagus that may be causing black diarrhea, like esophageal or oesophageal ulcer, esophagitis or oesophagitis, the Osler-weber-Rendu syndrome, esophageal or oesophageal varices, Mallory-Weiss tear or a cut in the lower esophagus or oesophagus that occurs due to excessive vomiting, and esophageal or oesophageal angiodysplasia.

If the root cause lies in the stomach then black diarrhea may happen because of dieulafoy, benign gastric ulcer, gastritis, gastric cancer, gastric angiodysplasia and gastric varices. If the cause lies at the colon then it may be angiodysplasia or cancer of the colon, and if it lies in the small bowel then black diarrhea may happen because of Meckel’s diverticulum, Crohns disease or Malignancy/lymphoma.

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What Causes Black Diarrhea