Rare diseases · Sign or symptom

Hypoplasia of the anterior nasal spine

HP:0010666

What it means

Underdevelopment of the anterior nasal spine of maxilla.

Rare diseases that can present with this1

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: Decreased length of anterior nasal spine · Decreased projection of anterior nasal spine · Decreased size of anterior nasal spine · Deficiency of anterior nasal spine · Hypotrophic anterior nasal spine · Small anterior nasal spine · Underdevelopment of anterior nasal spine

Hypoplasia of the anterior nasal spine

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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.