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Anemia

decrease in number of red blood cells
Blood film with iron deficiency anemia.
Sickle cell anemia. Normal red blood cells are shown in Figure 1; with sickle cell anemia, red blood cells look like figure 2

Anemia (U.S. spelling) or anaemia is not having enough red blood cells or hemoglobin in the blood.

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Types or causes of anemiaEdit

Microcytic anemiaEdit

Normocytic anemiaEdit

Macrocytic anemiaEdit

Dimorphic anemiaEdit

Dimorphic anemia means two types of anemia at the same time. For example, macrocytic hypochromic, due to hookworm infestation leading to not enough of both iron and vitamin B12 or folic acid or following a blood transfusion.