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 Black or Tarry Stools UF Health Stool changes healthdirect Black Stool Sign: 7 Serious Health Conditions That Can Cause Black Coloured Poop The science of stool color + when it might be a sign for concern
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