Pernicious anemia

Description

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

Overview

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

Symptoms

Symptoms of pernicious anemia include fatigue and weakness. Untreated, the condition can cause heart and nerve damage.

Treatments

Treatment for pernicious anemia involves vitamin B-12 shots or pills.