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Neutrophils
All NiaHealth tests are processed in Canadian-certified labs, which are highly trusted by the medical community for their accuracy and reliability. Blood and urine samples are collected by licensed medical professionals and processed using state-of-the-art equipment. NiaHealth is SOC2 Type 2 certified.
What is it?
Neutrophils are a type of white blood cell that help your body fight infection. They are part of your immune system's first line of defense.
The absolute neutrophil count (ANC) measures how many neutrophils are circulating in your blood.
Why it matters
Neutrophils play a key role in protecting against bacterial and fungal infections.
Changes in neutrophil levels can help signal infection, inflammation, stress responses, medication effects, or bone marrow conditions. Because neutrophils are part of the white blood cell system, their count is interpreted alongside the total WBC and the rest of the differential.
Reference ranges
- Below range: Lower neutrophil levels may reduce the body's ability to fight certain infections. Some people naturally have slightly lower neutrophil counts without health consequences, but persistent or very low levels may require further evaluation.
- In range: Neutrophil count is within expected limits.
- Above range: Higher neutrophil levels are commonly seen with infection, inflammation, physiologic stress, smoking, or certain medications. Persistently elevated levels may warrant further assessment to understand the cause.
Burn, G. L., Foti, A., Marsman, G., Patel, D. F., & Zychlinsky, A. (2021). The neutrophil. Immunity, 54(7), 1377–1391.
Mayadas, T. N., Cullere, X., & Lowell, C. A. (2014). The multifaceted functions of neutrophils. Annual Review of Pathology, 9(1), 181–218.
Rout, P., Reynolds, S. B., & Zito, P. M. (2025). Neutropenia. In StatPearls. StatPearls Publishing.
This information is educational and does not replace medical advice, diagnosis, or treatment. Your results should be interpreted with a qualified healthcare professional in the context of your health history.
