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What Causes Black Runny Stool?
I have a ostomy bag located on the left side of my stomach which supposed to be a temporary thing for the relief of anal ulcer I noticed my stool is black and liquidy....I m nervous because my surgeon inform me that the cancer of the anal has came back...I m just nervous to why the stool change
Mon, 14 Dec 2020
Hi,
Black and runny stool can be either from food ( for example, beers make the stool red) or from a bleed in your gastrointestinal tract (usually the stomach). The blood can get black as it is digested and moves along the intestines. It can be runny due to increased movement throughout the intestines, and sometimes increased water in the stool.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Timothy Wong, General & Family Physician
Black and runny stool can be either from food ( for example, beers make the stool red) or from a bleed in your gastrointestinal tract (usually the stomach). The blood can get black as it is digested and moves along the intestines. It can be runny due to increased movement throughout the intestines, and sometimes increased water in the stool.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Timothy Wong, General & Family Physician
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