FreeMD® Pernicious Anemia Definition

Pernicious Anemia Definition

Common names:

Anemia from Low Vitamin B12
Anemia Pernicious
B12 Anemia
B12 Deficiency
B12 Deficient Anemia
Deficiency of Intrinsic Factor
Deficiency of Vitamin B12
Intrinsic Factor Deficiency
Pernicious Anemia
Vitamin B12 Deficiency
Vitamin B12 Deficient Anemia

A person with pernicious anemia has a reduced number of red blood cells in the bloodstream, due to a lack of vitamin B-12.

Pernicious anemia is caused by decreased levels of intrinsic factor, which is an enzyme that helps the body absorb vitamin B-12. The average age of onset for pernicious anemia is 60 years.

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