Neutropenia is a blood disorder characterized by presence of an abnormally low number of neutrophils.
Neutrophils are white blood cells (leukocytes) that serves as the primary defense against infections by destroying bacteria in the blood.
Specfically, neutrophils are a type of granulocyte that contain granules filled with potent chemicals to break down the microbes they ingest. Some of these chemicals, such as histamine, also contribute to inflammation and allergy.
The process of eating and digesting microbes is called phagocytosis. Neutrophils are phagocytes.1 
Q: How do neutrophils eat microbes?
A: Segmented neutrophils are the mature phagocytes that migrate through tissues to destroy microbes and respond to inflammatory stimuli. Segmented neutrophils comprise 40-75 % of the peripheral leukocytes. They are usually 9 to 16 µm in diameter. The nuclear lobes, normally numbering from 2 to 5, may be spread out so that the connecting filaments are clearly visible, or the lobes may overlap or twist. The chromatin pattern is coarse and clumped. The cytoplasm is abundant with a few nonspecific granules and a full complement of rose-violet specific granules.2 
What Is Neutropenia In Celiac Disease and/or Gluten Sensitivity?
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