Rare diseases · Sign or symptom

Abnormal blood urea nitrogen concentration

HP:0031970

What it means

Any deviation from the normal concentration of urea nitrogen in the blood.

Part of the broader category

Also called: Abnormal BUN concentration

Abnormal blood urea nitrogen concentration

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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.