2 doctors weighed in:

What are low white blood cell count reasons?

2 doctors weighed in
Dr. Janice Olson
Pediatrics - Hematology & Oncology
1 doctor agrees

In brief: There are many.

Infections can sometimes cause low white blood cells - surprising to many because most people think of a high WBC in that case, but overwhelming bacterial infections can lead to depletion of wbcs.
Viruses can also destroy wbcs temporarily. Certain medicines and drugs can cause low white blood counts and auto-immune diseases (where the body's immune system attacks itself) are another cause.

In brief: There are many.

Infections can sometimes cause low white blood cells - surprising to many because most people think of a high WBC in that case, but overwhelming bacterial infections can lead to depletion of wbcs.
Viruses can also destroy wbcs temporarily. Certain medicines and drugs can cause low white blood counts and auto-immune diseases (where the body's immune system attacks itself) are another cause.
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