Sickle cell anemia

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Definition

By Mayo Clinic staff

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Illustration of normal red blood cells and sickle cells 
Sickle cell anemia

Sickle cell anemia is an inherited form of anemia — a condition in which there aren't enough healthy red blood cells to carry adequate oxygen throughout your body.

Normally, your red blood cells are flexible and round, moving easily through your blood vessels. In sickle cell anemia, the red blood cells become rigid and sticky and are shaped like sickles or crescent moons. These irregularly shaped cells can get stuck in small blood vessels, which can slow or block blood flow and oxygen to parts of the body.

There's no cure for most people with sickle cell anemia. However, treatments can relieve pain and help prevent further problems associated with sickle cell anemia.

References
  1. Saunthararajah Y, et al. Sickle cell disease: Clinical features and management. In: Hoffman R, et al. Hematology: Basic Principles and Practice. 5th ed. Philadelphia, Pa.: Churchill Livingstone Elsevier; 2009. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-0-443-06715-0..X5001-8--TOP&isbn=978-0-443-06715-0&uniqId=230100505-56. Accessed Jan. 24, 2011.
  2. Rees DC, et al. Sickle-cell disease. The Lancet. 2010;376:2018.
  3. Sickle cell anemia. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/Sca/SCA_All.html. Accessed Jan. 24, 2011.
DS00324 March 26, 2011

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