1 doctor weighed in:
Any reason for tarry stools aside from bleeding?
1 doctor weighed in

Dr. Arthur Heller
Internal Medicine - Gastroenterology
In brief: Blood til proven not
Black (not dark, but black) stools can be seen with bleeding, iron supplements, bismuth (pepto), charcoal pills, arsenic (not used as medicine anymore-used to treat syphilis).
Foods like blueberries can be confusing, as can excess intake of oreos (anecdotal experience).

In brief: Blood til proven not
Black (not dark, but black) stools can be seen with bleeding, iron supplements, bismuth (pepto), charcoal pills, arsenic (not used as medicine anymore-used to treat syphilis).
Foods like blueberries can be confusing, as can excess intake of oreos (anecdotal experience).
Dr. Arthur Heller
Dr. Arthur Heller
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