melanotic stool What Causes Black-Colored Stool? Black stool, or melena, can result from: Dietary Factors: Foods like black licorice, blueberries, or iron supplements. GI Bleeding: Upper gastrointestinal bleeding (e.g., ulcers, gastritis, or esophageal varices) Hematochezia vs. melena: What's the

Hematochezia vs. melena: What's the difference? UT MD Anderson Melanosis coli: a contrast effect or an oncogenic effect? A large scale retrospective cohort study International Journal of Colorectal Disease Springer Nature Link Dark stool vs black stool the difference can be serious. Dark brown stool is often food or iron related. Black, tarry stool may indicate internal bleeding and needs urgent medical attention. The science of stool color + when it might be a sign for concern What does melena indicate in stool?

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