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A member asked:
My stool is green and black. should i be worried?
A doctor has provided 1 answer
Possibly.: Green stool can be related to the foods we eat. If green and runny it may be due to transitting the GI tract too quickly. If black and tarry with a foul odor - that would be a cause to worry as that could be related to GI bleeding. Black stools can also be due to certain medications (notably pepto bismal). Regardless, changes to stool habitus warrant assessment.
Answered 6/10/2014
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