leukocytosis - Blood Test Center

What do high white blood cell counts indicate on a routine blood test?

January 1, 2026 by Blood Test Center

A doctor holds a tablet displaying a blood test report with a warning about high WBC count in a medical setting.

A high white blood cell count (Leukocytosis) on your routine blood test usually signals infection or stress. Learn the normal ranges, causes, and when to see a hematologist.

What do high white blood cell counts indicate on a routine blood test?

October 14, 2025 by Blood Test Center

Worried about a high WBC count? Our guide explains the common causes, from infection and stress to leukemia, and the next steps, like a peripheral blood smear.

Get in Touch with Blood Test Center.