Rare diseases · Sign or symptom

Abnormality of neutrophils

HP:0001874

What it means

A neutrophil abnormality.

Neutrophils are the most abundant leukocytes in blood and are considered to be the first line of defense during inflammation and infections. They are myeloid granulocytes and their names is derived from the fact that their cytoplasm contains granules that stain with acidic dye as well as granules that stain with basic dye. Their nuclei consist of three to five lobes connected by slender threads of chromatin. Mature neutrophils live for approximately one day.

Rare diseases that can present with this14

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Abnormality of neutrophil · Abnormality of polymorphonuclear neutrophils

Abnormality of neutrophils

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This page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.