Loss of voice (also called aphonia) may take several different forms. You may have a partial loss of your voice and it may sound hoarse. Or, you may have complete loss of your voice and it may sound like a whisper. Loss of voice can come on slowly or quickly depending on the cause.

Aphonia is different from aphasia, which is a language disorder.

The Larynx
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Aphonia is usually due to problems with the voice box (called the larynx). However, there can be other causes, including: