Laryngitis


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Definition

Laryngitis is swelling and irritation (inflammation) of the voice box (larynx) that is usually associated with hoarseness or loss of voice.


Causes, incidence, and risk factors

The voice box (larynx) is located at the top of the airway to the lungs (trachea). The larynx contains the vocal cords. When the vocal cords become inflamed or infected, they swell. This can cause hoarseness, and may sometimes block the airway.

The most common form of laryngitis is an infection caused by a virus, such as cold or flu viruses. It may also be caused by:

Laryngitis often occurs with an upper respiratory infection.

Several forms of laryngitis occur in children that can lead to dangerous or fatal respiratory blockage. These forms include:


References

Cummings CW, Flint PW, Haughey BH, et al. Otolaryngology: Head & Neck Surgery. 5th ed. St Louis, Mo; Mosby; 2010; chap 63.

Schwartz SR, Cohen SM, Dailey SH, et al. Clinical practice guideline: hoarseness (dysphonia). Otolaryngol Head Neck Surg. 2009 Sep;141(3 Suppl 2):S1-S31.


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Review Date: 12/16/2010
Reviewed By: Sumana Jothi MD, Specialist in Laryngology, Clinical Instructor UCSF Otolaryngology, NCHCS VA, SFVA, San Francisco, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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Last Updated 5/16/2011
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