Red blood cells, sickle cell
Red blood cells, sickle cell
Red blood cells, elliptocytosis
Red blood cells, elliptocytosis
Red blood cells, spherocytosis
Red blood cells, spherocytosis
Red blood cells, multiple sickle cells
Red blood cells, multiple sickle cells
Ovalocytoses
Ovalocytoses
Red blood cells, sickle cells
Red blood cells, sickle cells
Red blood cells, sickle and pappenheimer
Red blood cells, sickle and pappenheimer
Red blood cells, target cells
Red blood cells, target cells
Hemoglobin
Hemoglobin


Anemia

Definition:
Anemia is a lower than normal number of red blood cells (erythrocytes) in the blood, usually measured by a decrease in the amount of hemoglobin. Hemoglobin is the red pigment in red blood cells that transports oxygen.

There are many types and potential causes of anemia. For information about a specific type of anemia, see one of the following articles:

Causes, incidence, and risk factors:

The cause varies with the type of anemia. Potential causes include blood loss, nutritional deficits, many diseases, medication reactions, and various problems with the bone marrow. Iron deficiency anemia is most common in women who have heavy menstrual periods.

Risk factors include heavy periods, pregnancy, older age, and diseases that cause anemia.




Review Date: 11/6/2002
Reviewed By: Ezra E. W. Cohen, M.D., Department of Medicine, The University of Chicago, Chicago, IL. Review provided by VeriMed Healthcare Network.

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