Autoimmune diseases occur when the body attacks its healthy cells. When this happens, it targets and destroys neutrophil cells faster than the body can produce them. Autoimmune diseases linked to neutropenia include Crohn’s disease, rheumatoid arthritis, and lupus. The cause of autoimmune diseases is unknown, but the odds are higher in females that are African-American, Hispanic-Americans, and Native-Americans, or if you have a family history.

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