Rare diseases · Sign or symptom

Mononeuropathy

Single damaged nerve

HP:0009831

What it means

A focal lesion of a single peripheral nerve. Damage to a sensory nerve is accompanied by sensory impairment of all modalities in the affected anatomic distribution.

Rare diseases that can present with this3

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

Mononeuropathy

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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.