Sometimes dry mouth is a symptom of undiagnosed or improperly treated diabetes.

The lack of saliva leaves your mouth feeling uncomfortably dry.

High glucose levels can cause the symptom of dry mouth, although healthcare providers arent quite sure why.

woman sipping glass of water in kitchen

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Other oral symptoms of high blood sugar are:

Fatigue, blurred vision, and headaches may also occur.

If left untreated, coma and death are risks.

Dehydration

Not getting enough fluids can cause dry mouth from dehydration.

Liquids are necessary for your mouth to produce enough saliva.

Dry mouth due to dehydration for people with diabetes can often be controlled with medications.

Drinking enough water to match the water loss through urination is also essential.

When this happens, water is pulled from your other bodily tissues, causing you to feel thirsty.

You may also:

Managing your condition with medications and being sure to drink enough water is essential.

Consider asking for a referral to a nephrologist.

Medications

Certain medications used for diabetes can cause dry mouth, including Metformin.

You may be able to switch your medications if they cause you dry mouth.

Speak to your healthcare provider about this option.

Always consult with your healthcare provider before stopping any medication.

Dry mouth is a common side effect of this diet.

Water loss happens when glycogen is being excreted from the blood due to a lack of carbohydrates.

Speak to your healthcare provider before changing your diet.

When this happens, ketones can build up in the blood and make it more acidic.

You should check your urine for ketones when your blood glucose is more than 240 mg/dl.

Do not exercise if your urine shows ketones and your blood glucose is high.

Contact your healthcare provider for advice.

Warning Signs of Diabetic Ketoacidosis

Diabetic ketoacidosis can become life-threatening.

Early signs include:

If you experience these symptoms, call your healthcare provider.

Once vomiting occurs, a life-threatening condition can develop quickly.

Call emergency services immediately.

National Institute of Diabetes and Digestive and Kidney Diseases.Diabetes, gum disease, & other dental problems.

Alsakran Altamimi M.Update knowledge of dry mouth- A guideline for dentists.

American Diabetes Association.DKA (ketoacidosis) & ketones.

National Institute of Dental and Craniofacial Research.Dry mouth.