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Bookmark or Share- Hematemesis, Melena, and Hematochezia - Clinical Methods - NCBI BookshelfHematemesis is the vomiting of blood, which may be obviously red or have an appearance similar to coffee grounds. Melena is the passage of black, tarry stools. Hematochezia is the passage of fresh blood per anus, usually in or with stools.
- Melena (Black Stool): What It Means, Causes & Treatment - Verywell HealthMelena is when blood causes stools to appear black, tarry, and foul-smelling. The blood is dark because it is coming from somewhere in the upper digestive system, including the esophagus (food tube), stomach, and small intestine.
- Approach to acute upper gastrointestinal bleeding in adultsPatients with acute upper gastrointestinal (GI) bleeding commonly present with hematemesis (vomiting of blood or coffee-ground-like material) and/or melena (black, tarry stools), though patients with large-volume upper GI bleeding may also present with hematochezia (red or maroon blood with stool).
- Melena - WikipediaMelena is a form of blood in stool which refers to the dark black, tarry feces that are commonly associated with upper gastrointestinal bleeding. [1] The black color and characteristic strong odor are caused by hemoglobin in the blood being altered by digestive enzymes and intestinal bacteria. [2]
- Gastrointestinal bleeding - Symptoms and causes - Mayo ClinicGastrointestinal (GI) bleeding is a sign of a disorder in the digestive tract. The blood often shows up in stool or vomit but isn't always obvious. Stool may look black or tarry. Bleeding can range from mild to severe and can be life-threatening.
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