Rare diseases · Sign or symptom
Velopharyngeal insufficiency
Velopharyngeal incompetence
HP:0000220
What it means
Inability of velopharyngeal sphincter to sufficiently separate the nasal cavity from the oral cavity during speech.
Rare diseases that can present with this7
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: Velopharyngeal dysfunction
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Start free with EleplanThis 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.