A few questions help us personalize your report.
White blood cells are the immune system's active defense force, and their total count tells you whether your immunity is under- or overactive. An elevated WBC typically points to active infection, inflammation, or an immune reaction, while a low count can suggest immune suppression, viral illness, or a bone marrow problem. A differential breakdown — showing neutrophils, lymphocytes, and other subtypes — reveals which immune arm is most affected.
Also known as: Leukocyte Count, Leukocytes, Total WBC, WBC, WBC Count, WBCC, White Blood Cell Count, White Blood Cells
High WBC signals bacterial infection, inflammation, stress, smoking, or leukemia. Low WBC suggests viral infection, autoimmune disease, or bone marrow suppression.
Standard range is 4.0-11.0 K/uL. Functional medicine targets 5.0-7.0 K/uL. WBC above 7.5 K/uL correlates with increased cardiovascular events.