Dark stool, also known as black or tarry stool, can be caused by various factors. Some common causes include:
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Bleeding in the Upper Gastrointestinal Tract: Black or tarry stools may be due to bleeding in the upper part of the gastrointestinal tract, such as the esophagus, stomach, or the first part of the small intestine. This type of bleeding can cause the stool to appear black and tarry.
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Medications and Supplements: Certain medications and supplements can also lead to dark stool. For example, iron supplements can cause black poop as a side effect. Additionally, medicines containing bismuth, such as Pepto-Bismol, can also darken the stool.
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Consumption of Dark-Colored Foods: Eating dark-colored foods like black licorice, blueberries, beets, and grape juice can temporarily darken the stool. Once the consumption of these foods is stopped, the dark color should go away.
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Internal Bleeding: Melena, the black, tarry stool, is caused by internal bleeding, usually in the upper gastrointestinal tract. The blood turns black as it travels through the digestive system before being passed in the stool.
Its important to note that black or tarry stool can be a sign of a medical problem, especially if it is not attributed to diet or medication. If someone notices black or tarry stools, it is advisable to consult a doctor to determine the underlying cause and receive appropriate treatment.
