Anemia – Types, Symptoms, and Causes | Penn Medicine

May 26, 2026

There are more than 400 types of anemia, each with different causes ranging from iron deficiency, blood loss, or damaged red blood cells to issues with red blood cell production. Some of the most common forms of anemia are inherited, tied to malnutrition, or caused by abnormal blood cell function.

https://www.pennmedicine.org/conditions/anemia

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