A member asked:

Having diarrhea that is dark olive green w/ what looks like coffee grounds. have an appt today. should i be concerned?

3 doctors weighed in across 2 answers

Possibly: Black watery stools can be blood from high up in the bowel. Many possibilities such as ulcer or crohn's disease. For this he needs to see a gastroenterologist.

Answered 5/11/2016

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Yes but..: A concern about upper GI bleeding is low. Coffee ground like matter in diarrhea is not the same as emesis. But let your doctor know.

Answered 5/17/2021

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