Dry Mouth — Causes, Related Conditions & Affordable Treatment
Dry Mouth can be associated with multiple conditions. Consult a healthcare provider to determine the cause and appropriate treatment.
Conditions Related to Dry Mouth
Medications used for related conditions
Consult a healthcare provider to determine the cause and appropriate treatment.
Affordable Treatment Options
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MedlinePlus overview of Dry Mouth
What is saliva?
Saliva, or spit, is made by your salivary glands. It helps keep you and your mouth healthy. For example:
It moistens and breaks down the foods you eat, which makes it easier for you to chew and swallow.
It washes away small food pieces from your teeth and gums, which helps fight against tooth decay.
It contains minerals such as calcium and phosphate, which can also help fight tooth decay.
It contains antibodies that can fight against infections of the mouth and throat. Antibodies are proteins that your immune system makes to fight foreign substances such as viruses and bacteria.
What is dry mouth?
Having dry mouth, also called xerostomia, means that you don't have enough saliva to keep your mouth wet. Everyone has a dry mouth once in a while, like when you are nervous or stressed. But if you have a dry mouth all or most of the time, it can be uncomfortable. It can make chewing, swallowing, and even talking difficult. It also raises your risk for tooth decay or infections in the mouth.
What causes dry mouth?
There are many possible causes of dry mouth, including:
Side effects of certain medicines, such as some medicines for high blood pressure, depression, and bladder-control issues
Diseases such as Sjogren's syndrome, HIV, salivary gland disorders, and diabetes
Radiation therapy, which can damage your salivary glands if they are exposed to radiation during the treatment
Chemotherapy, which can make your saliva thicker and cause your mouth to feel dry
Nerve damage, when it involves the nerves that tell salivary glands to make saliva
Breathing through your mouth
Use of alcohol, tobacco, or other substances
What are the symptoms of dry mouth?
The symptoms of dry mouth may include:
A sticky, dry feeling in your mouth
Trouble chewing, swallowing, tasting, or speaking
A burning feeling in your mouth
A dry feeling in your throat
Cracked lips
A dry, rough tongue
Mouth sores
An infection in your mouth
Bad breath
How is the cause of dry mouth diagnosed?
If you have dry mouth, it's important to find out the cause. To do that, your health care provider or dentist will review your medical history, examine your mouth, and ask about any medicines you take. They may also suggest blood tests or a test that measures how much saliva you produce.
What are the treatments for dry mouth?
Treatment for dry mouth depends on the cause. For example, if a medicine is causing dry mouth, your provider or dentist may suggest adjusting the dosage or switching medicines. In some cases, they might give you artificial saliva or a medicine to help your salivary glands work better.
There are also several things you can do to help relieve your symptoms:
Drink plenty of water
Avoid drinks with caffeine, which can dry out your mouth
Chew sugarless gum or suck on sugarless hard candy to stimulate saliva flow
Avoid spicy or salty foods because they can cause pain if your mouth is dry
Avoid alcohol and tobacco
Using a humidifier at night
Use a mouthwash made for dry mouth
Since dry mouth can raise your risk of tooth decay, it's important to brush and floss your teeth regularly and see your dentist at least twice a year.
NIH: National Institute of Dental and Craniofacial Research
Source: MedlinePlus, National Library of Medicine. MedlinePlus topic page. Topic date: 04/26/2011. MedlinePlus file date: 10/15/2026 02:30:37.
This information is educational and is not medical advice.