Rare diseases · Sign or symptom

Abnormal monocyte count

HP:0012310

What it means

Abnormal increase or decrease of total monocytes, or their phenotype, in the blood, compared to a reference range for a given sex and age-group, measured ex vivo.

Mmonocytes are myeloid mononuclear recirculating leukocytes that can act as a precursor of tissue macrophages, osteoclasts and some populations of tissue dendritic cells.

Part of the broader category

Also called: Abnormal monocyte number

Abnormal monocyte count

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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.