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  2. Upper gastrointestinal bleeding - Wikipedia

    en.wikipedia.org/.../Upper_gastrointestinal_bleeding

    Upper gastrointestinal bleeding (UGIB) is gastrointestinal bleeding in the upper gastrointestinal tract, commonly defined as bleeding arising from the esophagus, stomach, or duodenum. Blood may be observed in vomit or in altered form as black stool. Depending on the amount of the blood loss, symptoms may include shock.

  3. Gastrointestinal bleeding - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_bleeding

    An upper GI bleed is more common than lower GI bleed. [2] An upper GI bleed occurs in 50 to 150 per 100,000 adults per year. [8] A lower GI bleed is estimated to occur in 20 to 30 per 100,000 per year. [2] It results in about 300,000 hospital admissions a year in the United States. [1] Risk of death from a GI bleed is between 5% and 30%.

  4. Blood in stool - Wikipedia

    en.wikipedia.org/wiki/Blood_in_stool

    Blood in stool looks different depending on how early it enters the digestive tract—and thus how much digestive action it has been exposed to—and how much there is. The term can refer either to melena, with a black appearance, typically originating from upper gastrointestinal bleeding; or to hematochezia, with a red color, typically originating from lower gastrointestinal bleeding. [6]

  5. Dieulafoy's lesion - Wikipedia

    en.wikipedia.org/wiki/Dieulafoy's_lesion

    Dieulafoy's lesions account for roughly 1.5 percent of gastrointestinal hemorrhage. [11] These lesions are twice as common in men, and often occur in older individuals (over 50 years of age) with multiple comorbidities, including hypertension, cardiovascular disease, chronic kidney disease, and diabetes.

  6. Acute esophageal necrosis - Wikipedia

    en.wikipedia.org/wiki/Acute_esophageal_necrosis

    The symptoms vary from the severity of the disorder. The most classic sign of AEN is the dark pigmentation of esophageal mucosa in an upper endoscopy, usually viewed as an ulcer or as an infectious disease. [6] Necrosis can be found mostly between the three distals of the esophagus, but stops abruptly at the gastroesophageal junction. [2]

  7. Mallory–Weiss syndrome - Wikipedia

    en.wikipedia.org/wiki/Mallory–Weiss_syndrome

    Mallory–Weiss syndrome is a condition where high intra-abdominal pressures causes laceration and bleeding of the mucosa called Mallory-Weiss tears. [1] Additionally, Mallory–Weiss syndrome is one of the most common causes of acute upper gastrointestinal bleeding, counting of around 1-15% of all cases in adults and less than 5% in children.

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  9. Melena - Wikipedia

    en.wikipedia.org/wiki/Melena

    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 odor are caused by hemoglobin in the blood being altered by digestive enzymes and intestinal bacteria.

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