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  2. Anemia - Wikipedia

    en.wikipedia.org/wiki/Anemia

    In older men and women, the chances are higher that bleeding from the gastrointestinal tract could be due to colon polyps or colorectal cancer. Worldwide, the most common cause of iron-deficiency anemia is parasitic infestation ( hookworms , amebiasis , schistosomiasis and whipworms ).

  3. Gastric antral vascular ectasia - Wikipedia

    en.wikipedia.org/wiki/Gastric_antral_vascular...

    Gastric antral vascular ectasia (GAVE) is an uncommon cause of chronic gastrointestinal bleeding or iron deficiency anemia. [1] [2] The condition is associated with dilated small blood vessels in the gastric antrum, which is a distal part of the stomach. [1] The dilated vessels result in intestinal bleeding. [3]

  4. Iron-deficiency anemia - Wikipedia

    en.wikipedia.org/wiki/Iron-deficiency_anemia

    Iron-deficiency anemia is anemia caused by a lack of iron. [3] Anemia is defined as a decrease in the number of red blood cells or the amount of hemoglobin in the blood. [3] When onset is slow, symptoms are often vague such as feeling tired, weak, short of breath, or having decreased ability to exercise. [1]

  5. Microcytic anemia - Wikipedia

    en.wikipedia.org/wiki/Microcytic_anemia

    Iron-deficiency anemia (IDA) is treated by addressing the underlying cause, for example gastrointestinal bleeding or inadequate dietary iron intake. [11] In the latter case, the anemia can be treated via either dietary or pharmacological (oral or intravenous) iron supplementation. [ 11 ]

  6. 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%.

  7. Iron deficiency - Wikipedia

    en.wikipedia.org/wiki/Iron_deficiency

    Iron deficiency, or sideropenia, is the state in which a body lacks enough iron to supply its needs. Iron is present in all cells in the human body and has several vital functions, such as carrying oxygen to the tissues from the lungs as a key component of the hemoglobin protein, acting as a transport medium for electrons within the cells in the form of cytochromes, and facilitating oxygen ...

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