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White Blood Cell CountK/uL

White blood cells are part of the immune system. This count is part of the complete blood count (CBC).

See your own White Blood Cell Count on its range.

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What White Blood Cell Count measures

White blood cells are part of the immune system. This count is part of the complete blood count (CBC).

If your White Blood Cell Count is low

A white cell count below the range means fewer circulating immune cells at the time of the draw. Mild dips are common and often temporary.

Commonly associated with

Worth asking your clinician: Whether the count is stable over time and whether the differential shows which cell type is low.

If your White Blood Cell Count is high

A white cell count above the range often reflects the immune system responding to something, such as an infection, inflammation or stress. It is usually read together with the differential (which types of white cells are up).

Commonly associated with

Worth asking your clinician: Which white cell types are elevated and whether the count settles on a repeat.

Typical reference range

GroupTypical range
Adults3.4 – 10.8 K/uL

Typical adult values used by many US labs. Your own report prints the range your lab validated for its method, and that range is the one that counts. Labwise always uses the printed range first.

If it is within range

Your white blood cell count is within the range printed by your lab.

Also listed as

WBC, WBC Count, Leukocytes, White Blood Cells

Related tests

This page is general information about what a laboratory test measures and what results outside a reference range are commonly associated with. It is not medical advice, does not diagnose any condition and does not replace your clinician. Discuss your results with your healthcare provider.