Laryngitis is an inflammation of the larynx. It causes hoarse voice or the complete loss of the voice because of irritation to the vocal folds (vocal cords).
Dysphonia is the medical term for a vocal disorder, of which laryngitis is one cause.
Laryngitis is categorized as acute if it lasts less than a few days. Otherwise it is categorized as chronic, and may last over 3 weeks.
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Last Updated: Sep 16, 2014