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What Causes Black Tarry Stool?

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Posted on Wed, 16 Mar 2016
Twitter Wed, 16 Mar 2016 Answered on
Twitter Mon, 23 May 2016 Last reviewed on
Question : What could be my problem if when i moved my bowels my stool was black ???

Moved my bowel yesterday afternoon noticed that the stool was black ??? What could be wrong !!! First time !!!!
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Answered by Dr. V. N. S. Parinam (27 minutes later)
Brief Answer:
Blood oozing in the upper gut

Detailed Answer:
Hello,

Black tarry stools represents digested blood in the stool. The acid in the stomach and duodenum (upper gut) digests the blood that may be oozing in these areas. I suspect varices, peptic ulcer or some bleeding tendency from the mouth or food pipe. There are some urgent reasons to be evaluated including tumors of the Gut.

So please get yourself evaluated immediately.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. V. N. S. Parinam

General & Family Physician

Practicing since :2008

Answered : 1727 Questions

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What Causes Black Tarry Stool?

Brief Answer: Blood oozing in the upper gut Detailed Answer: Hello, Black tarry stools represents digested blood in the stool. The acid in the stomach and duodenum (upper gut) digests the blood that may be oozing in these areas. I suspect varices, peptic ulcer or some bleeding tendency from the mouth or food pipe. There are some urgent reasons to be evaluated including tumors of the Gut. So please get yourself evaluated immediately.