Rare diseases · Sign or symptom
Phonophobia
Fear of loud sounds
HP:0002183
What it means
An abnormally heightened sensitivity to loud sounds.
Hyperacusis refers to a general hypersensitivity to sound of any frequency, and phonophobia to an anxious sensitivity towards specific sound largely independent of its volume. Hyperacusis and phonophobia represent disturbances of central auditory processing without peripheral pathology, often combined with psychosomatic reactions. Phonophobia is generally used to refer to discomfort caused by loud sounds rather than 'fear' of sounds as the etymology of the word might suggest.
Rare diseases that can present with this5
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
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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.