A member asked:

Is tarry stools a sign of some disease?

4 doctors weighed in across 2 answers

Melenic stool: Dark-colored stools may result from foods you eat (like a lot of spinach), substances (like peptobismol), but most significantly suggest bleeding. When blood is denatured by the acid in your stomach, as from ulcers, your stools will turn tarry ("melena"). Blood may ingested from nose bleeds, bleeding gums, etc. But persistent melena is a "red flag" warning for which you need fast medical care.

Answered 9/28/2016

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ALERT: Tarry stool is a symptom of bleeding in upper digestive system..stomach etc. it is digested blood,if the blood is red it is bleeding in lower digestive system ,large intestine,see doctor as soon as possible to examine you and do endoscopy,might also be some additives in food you ate.

Answered 5/16/2016

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Can having blood in my stool mean I have a disease?

A doctor has provided 1 answer