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What causes small black flecks in stool?

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Posted on Tue, 22 Jul 2014
Question: What could cause small black thin flecks in normal colored stool, not due for a colonoscopy yet have had a stool test recently to check for blood in stool
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Answered by Dr. Raju A.T (43 minutes later)
Brief Answer:
upper GI bleed

Detailed Answer:
Hi,

Thanks for your query.

Upper gastrointestinal bleeding can be presented as black flecks in the stool. For this you have to get a Upper Gastrointestinal endoscopy.

The blood from the upper GI tract like stomach, duodenum gets altered in the acid of the stomach and become black in colored due to formation of acid hematin.

Hope, I answered your query.

Wish you good health.

regards,
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Raju A.T

General & Family Physician

Practicing since :2008

Answered : 4247 Questions

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What causes small black flecks in stool?

Brief Answer: upper GI bleed Detailed Answer: Hi, Thanks for your query. Upper gastrointestinal bleeding can be presented as black flecks in the stool. For this you have to get a Upper Gastrointestinal endoscopy. The blood from the upper GI tract like stomach, duodenum gets altered in the acid of the stomach and become black in colored due to formation of acid hematin. Hope, I answered your query. Wish you good health. regards,