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A member asked:
I'm 15 weeks pregnant and have black stool the last two times. i'm not on any iron supplements. what could be the cause if this?
3 doctors weighed in across 2 answers
Iron or blood : If you are taking prenatal vitamins, which have extra iron in them, you might have this occur. Alternatively, you might have bleeding somewhere in your gastrointestinal tract (ex:bleeding ulcer) that should be further evaluated and worked-up.
Answered 9/28/2016
5.7k views
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Other: Possibility is that you have taken pepto bismol (bismuth subsalicylate) for acid reflux symptoms. The bismuth can turn the stool black.
Answered 3/16/2014
4.3k views
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