Diseases & Conditions


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Anemia, Megaloblastic


Synonyms of Anemia, Megaloblastic
  • Folate Deficiency Anemia
  • Folic Acid Deficiency Anemia
  • Vitamin B12 Deficiency Anemia

Disorder Subdivisions



    General Discussion
    Megaloblastic anemia is a condition in which the bone marrow produces unusually large, structurally abnormal, immature red blood cells (megaloblasts). Bone marrow, the soft spongy material found inside certain bones, produces the main blood cells of the body -red cells, white cells, and platelets. Anemia is a condition characterized by the low levels of circulating, red blood cells. Red blood cells are released from the marrow into the bloodstream where they travel throughout the body delivering oxygen to tissue. A deficiency in healthy, fully-matured red blood cells can result in fatigue, paleness of the skin (pallor), lightheadedness and additional findings. Megaloblastic anemia has several different causes - deficiencies of either cobalamin (vitamin B12) or folate (vitamin B9) are the two most common causes. These vitamins play an essential role in the production of red blood cells.

    Organizations related to Anemia, Megaloblastic
    • Anemia Institute for Research and Education
      151 Bloor Street West
      Toronto, Ontario None M5S 1S4
      Phone #: 416--96-9-7431
      800 #: 877--99-2-6364
      e-mail: info@anemiainstitute.org
      Home page: http://www.anemiainstitute.org
    • Madisons Foundation
      PO Box 241956
      Los Angeles CA 90024
      Phone #: 310-264-0826
      800 #: N/A
      e-mail: getinfo@madisonsfoundation.org
      Home page: http://www.madisonsfoundation.org
    • NIH/National Heart, Lung and Blood Institute
      31 Center Drive MSC 2480
      Bethesda MD 20892-2480
      Phone #: 301-592-8573
      800 #: --
      e-mail: nhlbiinfo@rover.nhlbi.nih.gov
      Home page: http://www.nhlbi.nih.gov/



    For a Complete Report

    This is an abstract of a report from the National Organization for Rare Disorders, Inc. ? (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html