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.
Answered 6/10/2014
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