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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What are the reasons for black stool?

I have had a dark black stool for the last three days. I am thinking that that would blood in the small intestine or I have eaten a ton of licorice. Different foods do not change the color at all. .Hi, can I answer your health question? Please type your question here...
Tue, 26 Jun 2018
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General Surgeon 's  Response
Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.

There can be various reasons for black stool as
- bleeding ulcer
- inflammatory bowel condition as IBS or others
- hemorrhoids
- side effect of certain drugs
- certain food stuffs changing intestine flora
- others.

In our clinic, I recommend to undertake a stool microscopy along with colonoscopy examination for the final work up and management guidelines.

Hope this information will help you.

Thanks.
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What are the reasons for black stool?

Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. There can be various reasons for black stool as - bleeding ulcer - inflammatory bowel condition as IBS or others - hemorrhoids - side effect of certain drugs - certain food stuffs changing intestine flora - others. In our clinic, I recommend to undertake a stool microscopy along with colonoscopy examination for the final work up and management guidelines. Hope this information will help you. Thanks.