Melena Stool Definition, Causes and More: Understand melena stool, dark and tarry stool often indicating upper gastrointestinal bleeding. Learn about potential causes and implications.: Arpilor, Mr. Leonardimer: 9798859376544: Amazon.com: Books Melena I'm so sorry to post a poop picbut this looks black and I'm wondering if I should be concerned. : r AskDocs Understanding Poop Color Meaning: Gut Health from Your Stool 1) Signs & Triads Flashcards Quizlet What does your poop colour indicate? Pay attention. There's a lot to be learned by the colour and consistency of your stools, as well as the frequency and how easily passed