What causes anemia?

Updated: Nov 26, 2019
  • Author: Joseph E Maakaron, MD; Chief Editor: Emmanuel C Besa, MD  more...
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Anemia, like a fever, is a sign that requires investigation to determine the underlying etiology. Often, practicing physicians overlook mild anemia. This is similar to failing to seek the etiology of a fever. The purpose of this article is to provide a method of determining the etiology of an anemia. (See the image below.) (See Etiology, Presentation, and Workup.)

Microcytic anemia. Microcytic anemia.

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