Inflammation of the larynx, causing hoarseness. Simple laryngitis usually occurs with infections such as the common cold. Other causes include inhalation of irritants. The larynx's lining becomes swollen and secretes mucus. In chronic laryngitis, caused by excessive smoking, drinking, or vocal-cord use, the larynx is dry and has polyps. Other types are caused by diphtheria spreading from the upper throat, tuberculosis bacteria spreading from the lungs, and advanced syphilis. The last can produce severe scarring and permanent hoarseness.
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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.
Symptoms of laryngitis vary, depending on the severity and also the cause. The most common, and obvious, symptom is impaired speech, ranging from a raspy hoarseness to the total loss of ability to speak, except at a whisper. Other symptoms can include:
If laryngitis is due to gastroesophageal reflux:
If laryngitis is due to a bacterial or fungal infection:
If persistent hoarseness or loss of voice (sometimes called "laryngitis") is a result of vocal cord nodules: