What Are the Signs and Symptoms of Pernicious Anemia?
The signs and symptoms of pernicious anemia are due to a lack of vitamin B12 (vitamin B12 deficiency). Without enough vitamin B12, your body can’t make enough healthy red blood cells. This causes anemia. Some of the signs and symptoms of pernicious anemia apply to all types of anemia. Other signs and symptoms are specific to a lack of vitamin B12.