What Causes Dry Mouth?

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Dry mouth can be quite annoying, but better understanding the causes of it could help you avoid the condition. Dry mouth occurs when the mouth’s salivary glands do not produce enough saliva to keep the mouth moist.

Dry mouth can happen for a variety of reasons including:

  • Aging – There are a number of age-related health problems that can cause dry mouth. Older adults also typically take more medication and their bodies may react differently than they did in their younger years.
  • Medications – There are hundreds of over-the-counter and prescription medications that list dry mouth as a possible side effect. Medications used to treat conditions such as depression, anxiety, and high blood pressure are often culprits, as are some pain medications, decongestants, muscle relaxants, and antihistamines.
  • Cancer Therapy – Chemotherapy can change the amount of saliva your body produces and radiation treatments can damage your salivary glands. These issues may be temporary or permanent.

Other possible causes of dry mouth include:

  • Alcohol and Tobacco Use
  • Recreational Drug Use
  • Diabetes
  • Alzheimer’s Disease
  • Autoimmune Diseases
  • Snoring
  • Dehydration


If you’re suffering from dry mouth, there may be additional causes that your dentist can help treat and diagnose. Schedule an appointment with Tribeca Dental today by calling 212-561-5303.