Hypochromia means that the red blood cells have less color than normal when examined under a microscope. This usually occurs when there is not enough of the pigment that carries oxygen (hemoglobin) in the red blood cells.
The most common cause of hypochromia in the United States is iron deficiency. The cause of hypochromia should be evaluated by your health care provider.
See also: Iron deficiency anemia
Gallagher PG. Hemolytic anemias: red cell membrane and metabolic defects In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 164.
Brittenham G. Disorders of iron metabolism: iron deficiency and iron overload. In: Hoffman R, Benz EJ, Shattil SS, et al, eds. Hematology: Basic Principles and Practice. 5th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2008:chap 36.