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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Diarrhea And Black Stool?

my son ( 21 yrs old) has had diarrhea for about 3 days - he says the fecal material is very black. This morning he noticed his tongue was black but returned to a normal color after he brushed his teeth. It has remained a normal color all day. Other symptoms are he s tired and has a lack of appetite. what might this be?
Thu, 30 Mar 2017
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General & Family Physician 's  Response
Hi
Thank you for asking HCM
I have gone through your query. Black stools can be most likely due to digested blood. This can occur due to upper digestive tract bleeding. A consultation with gastroenterologist or general surgeon is well appreciated. Conditions like peptic ulcer can give such picture.
Hope this can help you. Let me know if anything not clear.
Thanks
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What Causes Diarrhea And Black Stool?

Hi Thank you for asking HCM I have gone through your query. Black stools can be most likely due to digested blood. This can occur due to upper digestive tract bleeding. A consultation with gastroenterologist or general surgeon is well appreciated. Conditions like peptic ulcer can give such picture. Hope this can help you. Let me know if anything not clear. Thanks