Since white blood cells are responsible for the body's immunity, then a decrease in white blood cells makes the body less immune.

Minor deficiencies are made granulocytopenia and severe deficiencies (less than 1.5) are made granulocyte deficiencies, the latter of which is dangerous and can cause serious infections leading to death.

The first step is to treat the primary condition or eliminate other causes of leukopenia, and medications such as hormones, leukapheresis injections, leukapheresis tablets, and antibiotics for more severe deficiencies can be used