Pernicious anemia

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Pernicious anemia is when a person has less red blood cells because their intestines cannot absorb vitamin B12 properly.[1] A special protein, called intrinsic factor, helps the body get vitamin B12 from food such as meat, poultry and dairy foods. Intrinsic factor is made by cells in the stomach.[1] If there is not enough intrinsic factor, the small intestine is unable to get the vitamin B12. There are several causes of pernicious anemia. These include a weakened stomach lining or a problem with the body's immune system which causes it to attack the intrinsic factor.[1] In some rare cases is can be passed down through families. Treatment is usually a regular injection of vitamin B12.[1]

References[change | edit source]

  1. 1.0 1.1 1.2 1.3 "Pernicious anemia". Pub Med Health. 8 February 2012. http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001595/. Retrieved 7 October 2012.