Pernicious anemia


Pernicious anemia is a decrease in red blood cells that occurs because the body can't absorb enough vitamin B-12. Common causes include a weakened stomach lining or an autoimmune condition.


Symptoms include fatigue and weakness. Untreated pernicious anemia can cause heart and nerve damage.


Treatment involves vitamin B-12 shots or pills.

Last Updated Jun 13, 2017

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