2023年6月8日 · “Melena” is the medical term for the black, tarry stool that comes from bleeding in your upper gastrointestinal (GI) tract. Black stool is a sign of older blood in your stool. The …

Melena 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 …

2025年3月4日 · Melena refers to black, tar-like, sticky stools and usually results from upper gastrointestinal bleeding. The source of bleeding can come from damage to the lining of the GI …

Melena (black tarry stool) Clinical Information. Abnormally dark tarry feces containing blood (usually from gastrointestinal bleeding). The black, tarry, foul-smelling feces that contain …

Melena is the most common presenting symptom of major gastrointestinal hemorrhage. About 90% of quantitatively important gastrointestinal bleeding episodes occur from sites above the …

2025年2月7日 · Hematochezia and melena are two terms that describe different ways blood can appear in your stool. Hematochezia is bright red blood that generally starts lower in the …

Melena is the passage of black, tarry, and foul-smelling bowel movements due to degradation of blood originating from the upper GI tract; it can rarely signify bleeding from the small bowel or …

Melena, or tarry black stool, is not a rare symptom in pediatric clinical practice, and the source of hemorrhage varies from the upper gastrointestinal tract to the small intestine. In rare cases, …

中文: 果例患者临床表现为黑便例 (00%)、呕血 0例 (7.%)、腹胀 例 (8 . %)、腹痛9例 (.%)、反酸8例 (.9%)。 更详细... 英文: Results:No hematemesis or melena was observed in rabeprazole …

The passage of blackish, tarry feces associated with gastrointestinal hemorrhage. Melena occurs if the blood remains in the colon long enough for it to be broken down by colonic bacteria. One …