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  • Date :
  • 10/24/2007

What Causes Dry Mouth?

mouth

People get dry mouth when the glands in the mouth that make saliva are not working properly. Because of this, there might not be enough saliva to keep your mouth wet. There are several reasons why these glands (called salivary glands) might not work right.

• Side effects of some medicines. More than 400 medicines can cause the salivary glands to make less saliva. Medicines for high blood pressure and depression often cause dry mouth.

• Disease. Some diseases affect the salivary glands. Sjögren's Syndrome, HIV/AIDS, diabetes, and Parkinson's disease can all cause dry mouth.

• Radiation therapy. The salivary glands can be damaged if they are exposed to radiation during cancer treatment.

• Chemotherapy. Drugs used to treat cancer can make saliva thicker, causing the mouth to feel dry.

• Nerve damage. Injury to the head or neck can damage the nerves that tell salivary glands to make saliva.

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