Functional aphonia

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functional aphonia diagnosis management functional voice disorder

Functional aphonia is a complete or near-complete loss of the normal spoken voice despite a structurally normal larynx and no neurological paralysis. People may communicate only in a whisper, yet can sometimes cough, laugh, or make other involuntary sounds normally.

It is usually considered within functional voice disorders, often overlapping with severe muscle-tension dysphonia or, in some cases, a functional neurological/psychogenic presentation. Excessive or uncoordinated laryngeal muscle tension prevents normal vocal-fold vibration. It is not malingering or “putting it on.” Functional voice disorder overview

Diagnosis

ENT assessment with flexible laryngoscopy or videostroboscopy to exclude vocal-fold paralysis, inflammation, lesions, cancer, and neurological disease.
Voice assessment by a speech-language therapist.
Symptoms and triggers are assessed, including voice overuse, upper respiratory infection, reflux, occupational demands, stress, anxiety, and trauma.

Treatment

First-line: specialist voice therapy, often using techniques that restore coordinated airflow and gentle phonation, such as flow phonation.
Avoid forceful whispering, throat clearing, shouting, and repeated attempts to “push” the voice out.
Treat contributing problems such as reflux, allergy, or cough if present.
Psychological support can be helpful when stress, anxiety, or trauma is relevant, alongside voice therapy rather than as a substitute for it. The ASHA voice-disorder guidance describes flow-phonation approaches and the role of appropriate referral.

Seek urgent ENT/medical review for persistent hoarseness or aphonia beyond 2-3 weeks, breathing difficulty or noisy breathing, coughing blood, neck lump, unexplained weight loss, pain on swallowing, or a smoking history.

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