A neutrophil is the most common type of white blood cell, the cells
that protect the body against infection by destroying bacteria.
Immature neutrophils are called band cells, while mature
neutrophils are called polys. If a person has a low neutrophil count (as tested
in a complete blood count), he or she has an increased risk of
E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Martin J. Gabica, MD - Family Medicine & Joseph O'Donnell, MD - Hematology, Oncology