A decrease in red blood cells that happens when the body can't absorb enough vitamin B-12.
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 Aug 18, 2023