White Blood Cells: Normal Range in Adults and What an Abnormal Test Result Means
The normal white blood cell count in adults is 4 to 11 × 10⁹/L. We explain what the number 12 on your report means and when an abnormal result requires a doctor.
The normal white blood cell count in adults is 4 to 11 × 10⁹/L. We explain what the number 12 on your report means and when an abnormal result requires a doctor.
What white blood cells are, why they are needed, how they appear on a test form, and what an elevated or reduced count indicates.