Neutrophils help your immune system fight infections and heal injuries. They are the most common type of white blood cell in your body. A neutrophil blood test, or absolute neutrophil count, can identify whether your body has enough neutrophils or if your count is above or below average. Common causes for high neutrophil levels include infections, inflammation, injury, certain types of leukemia, and reactions to certain drugs. Low levels of neutrophils can be caused by infection, chemotherapy, bone marrow disorder, vitamin deficiency, or autoimmune disease. Common tests to check neutrophil levels include complete blood count (CBC) tests, absolute neutrophil count (ANC) and bone marrow biopsy.
This page is provided for educational and informational purposes only and does not constitute the provision of medical advice or professional services. The information provided should not be used for diagnosing or treating a health problem or disease, and those seeking personal medical advice regarding any of the tests and conditions referenced above are advised to consult with a licensed clinician. Always seek the advice of your qualified health provider regarding a medical condition and do not disregard professional medical advice or delay in seeking it because of any information on this page. If you think you may have a medical emergency, immediately call 911 or go to the nearest urgent care center or hospital.