4 doctors weighed in:
What does it mean if you have black stools?
4 doctors weighed in

Dr. Charles Cattano
Internal Medicine - Gastroenterology
3 doctors agree
In brief: Dark-colored stool
Dark-colored stools may result from iron supplements, foods you eat (like a lot of spinach), substances (like peptobismol), but most significantly suggests bleeding.
When blood is denatured by acid in your stomach, as from ulcers, stools will turn tarry ("melena"). Blood may also be ingested from nose bleeds, bleeding gums. Silver-colored stool suggests bleeding from the biliary tree. Get checked.

In brief: Dark-colored stool
Dark-colored stools may result from iron supplements, foods you eat (like a lot of spinach), substances (like peptobismol), but most significantly suggests bleeding.
When blood is denatured by acid in your stomach, as from ulcers, stools will turn tarry ("melena"). Blood may also be ingested from nose bleeds, bleeding gums. Silver-colored stool suggests bleeding from the biliary tree. Get checked.
Dr. Charles Cattano
Dr. Charles Cattano
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