Dry mouth isn’t simply “aging”
Dry mouth, medically called xerostomia, is common in older adults, but normal aging by itself doesn’t necessarily cause the salivary glands to stop working. When someone develops persistent dry mouth, it’s worth looking for a cause.
Common reasons
-
💊 Medications: This is one of the most common causes. Many medicines for blood pressure, allergies, depression, anxiety, pain, and bladder problems can reduce saliva.
-
💧 Dehydration: Not drinking enough fluids, vomiting, diarrhea, or excessive sweating can temporarily reduce saliva.
-
😮💨 Mouth breathing: Nasal congestion, snoring, or sleeping with the mouth open can cause significant dryness.
-
🩺 Medical conditions: Diabetes and some autoimmune disorders, including Sjögren’s disease, can affect saliva production.
-
🦷 Radiation treatment involving the head and neck can damage salivary glands.
Why saliva matters
Saliva isn’t just about keeping your mouth comfortable. It helps:
-
Protect teeth from decay
-
Lubricate food and aid swallowing
-
Protect the lining of the mouth
-
Support taste and digestion
Persistent dry mouth therefore increases the risk of tooth decay, gum disease, mouth sores, difficulty swallowing, and oral infections.
What you can do
Sip water regularly, chew sugar-free gum or use sugar-free lozenges to stimulate saliva, avoid excessive alcohol and tobacco, and maintain good dental hygiene. A dentist or doctor can also recommend saliva substitutes if necessary.
If dry mouth persists for several weeks, causes difficulty swallowing, produces frequent cavities, or began after starting a medication, have it evaluated. Don’t stop prescription medication on your own.
Bottom line: Dry mouth shouldn’t simply be dismissed as “your saliva shutting down because you’re old.” It’s often treatable once the underlying cause is identified.
