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November 25, 2009
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Hoarseness

Medical Author: Steven E. Doerr, MD
Medical Editor: William C. Shiel Jr., MD, FACP, FACR

What is hoarseness?

Hoarseness is an abnormal deep, harsh voice caused by a variety of conditions.

What causes hoarseness?

Hoarseness is generally caused by irritation of, or injury to, the vocal cords. The larynx (also referred to as the voice box), is the portion of the respiratory (breathing) tract containing the vocal cords. The cartilaginous outer wall of the larynx is commonly referred to as the "Adams apple." The vocal cords are two bands of muscle that form a "V" inside the larynx. When we sing or speak, the vocal cords vibrate and produce sound.

Picture of the Larynx

Hoarseness can be caused by a number of conditions. The most common cause of hoarseness is acute laryngitis (inflammation of the vocal cords) caused by an upper respiratory tract infection (usually viral), and less commonly from overuse or misuse of the voice (such as from yelling or singing).

Other causes of hoarseness include:



Next: What are the signs and symptoms of hoarseness? »

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Hoarseness

What does an allergy mean?

An allergy refers to an exaggerated reaction by our immune system in response to bodily contact with certain foreign substances. It is exaggerated because these foreign substances are usually seen by the body as harmless and no response occurs in non- allergic people. Allergic people's bodies recognize the foreign substance and one part of the immune system is turned on. Allergy-producing substances are called "allergens." Examples of allergens include pollens, dust mite, molds, danders, and foods. To understand the language of allergy it is important to remember that allergens are substances that are foreign to the body and can cause an allergic reaction in certain people.

When an allergen comes in contact with the body, it causes the immune system to develop an allergic reaction in persons who are allergic to it. When you inappropriately react to allergens that are normally harmless to other people, you are having an aller...

Read the Allergy article »










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