Iron deficiency anemia causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Causes

• Chronic bleeding (hemoglobin contains iron)
  • Excessive menstrual bleeding
  • Non-menstrual bleeding
  • Bleeding from the gastrointestinal tract (ulcers, hemorrhoids, etc.)
  • Rarely laryngological bleeding or from the respiratory tract
• Inadequate intake (special diets low in dietary iron)
• Substances (in diet or drugs) interfering with iron absorption
• Malabsorption syndromes