2 doctors weighed in:
What can cause my stool to be black and stinky?
2 doctors weighed in

Dr. Arthur Heller
Internal Medicine - Gastroenterology
1 doctor agrees
In brief: Bleed. Call MD NOW
Black, tarry stools can be seen with bleeding in the gut- usually upper GI tract (stomach, duodenum), but not always; even without pain, nausea, etc.
Risks include aspirin, nsaids, alcohol, ulcer history, steroids. Black stools also from pepto-bismol, iron pills, arsenic (not prescribed anymore), charcoal. Black is black, dark is dark. Call doc now. If lightheaded, chest discomfort, palps: er now.

In brief: Bleed. Call MD NOW
Black, tarry stools can be seen with bleeding in the gut- usually upper GI tract (stomach, duodenum), but not always; even without pain, nausea, etc.
Risks include aspirin, nsaids, alcohol, ulcer history, steroids. Black stools also from pepto-bismol, iron pills, arsenic (not prescribed anymore), charcoal. Black is black, dark is dark. Call doc now. If lightheaded, chest discomfort, palps: er now.
Dr. Arthur Heller
Dr. Arthur Heller
Thank
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