Rare diseases · Sign or symptom
Trigeminal anesthesia
HP:0031912
What it means
Decreased or absent sensation in the distribution of the trigeminal nerve, which provides tactile, proprioceptive, and nociceptive sensation in the area of the face and mouth.
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: Trigeminal anaesthesia
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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.