Dry Mouth (Xerostomia): Causes, Symptoms, and Treatment
Dry mouth (xerostomia) occurs when your salivary glands do not produce enough saliva. While xerostomia is not a disease itself, it is often a symptom of underlying medical conditions, side effects of medications, or treatments like radiation therapy.
Saliva is vital for oral health — it helps prevent tooth decay, aids digestion, enhances taste, and keeps the mouth moist. Without enough saliva, activities like eating, speaking, and swallowing can become difficult.
What Is Xerostomia?
Xerostomia refers to a condition where saliva production is reduced. It can be temporary or chronic and may significantly affect both oral health and overall well-being.
👉 Learn more about oral hygiene and dental care (internal link).
Importance of Saliva in Oral Health
Saliva protects your mouth and body in many ways:
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Neutralises harmful acids produced by bacteria.
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Washes away food particles, preventing cavities.
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Contains enzymes that aid digestion.
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Improves taste and makes chewing/swallowing easier.
When saliva flow decreases, the risk of tooth decay, gum disease, and oral infections rises.
Causes of Dry Mouth (Xerostomia)
Several factors can lead to dry mouth symptoms, including:
1. Medications
Hundreds of drugs list dry mouth as a side effect, such as:
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Antidepressants
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Antihistamines & decongestants
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High blood pressure medications
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Sedatives
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Cold/flu remedies
💡 Tip: If you think your medication is causing xerostomia, talk to your doctor about alternatives. See Mayo Clinic – Dry Mouth Causes.
2. Stress, Anxiety & Depression
Emotional stress can temporarily reduce saliva flow. Stress management techniques may help.
3. Diabetes
Linked to reduced saliva production and increased oral health problems.
4. Autoimmune Diseases
Conditions like Sjögren’s syndrome, HIV/AIDS, or Graft-versus-Host Disease can attack salivary glands.
5. Radiation Therapy
Radiation to the head/neck may permanently damage salivary glands.
6. Hormonal Changes
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Pregnancy: Usually temporary.
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Menopause: Can cause chronic xerostomia.
7. Medical Conditions
Examples include:
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Alzheimer’s disease
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Parkinson’s disease
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Rheumatoid arthritis
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Cystic fibrosis
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Stroke
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Hypertension
8. Nerve Damage
Injury or surgery to the head/neck can affect nerves controlling saliva.
9. Dehydration
Caused by fever, sweating, vomiting, diarrhoea, blood loss, or burns.
10. Lifestyle Habits
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Smoking
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Chewing tobacco
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Mouth breathing
👉 Related: How smoking affects oral health
Symptoms of Dry Mouth
People with xerostomia may experience:
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Sticky, dry tongue and mouth
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Thick, stringy saliva
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Dry throat and cracked lips
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Difficulty chewing, swallowing, or speaking
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Bad breath (halitosis)
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Mouth sores or infections (oral thrush)
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Increased tooth decay & gum disease
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Burning or tingling sensations
Body symptoms may also include: dry eyes, constipation, joint pain, yeast infections, or weight loss.
Complications of Untreated Dry Mouth
If left untreated, xerostomia may cause:
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Tooth decay & gum disease
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Recurrent oral infections
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Difficulty eating, swallowing, or speaking
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Persistent bad breath
👉 Protect your teeth: Learn about gum disease prevention.
Treatment and Relief for Dry Mouth
The best treatment depends on the cause. Main goals:
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Prevent cavities & oral infections
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Address medical conditions
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Increase saliva production
Natural Remedies for Dry Mouth
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Sip water frequently
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Chew sugar-free gum (with xylitol)
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Avoid alcohol-based mouthwash
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Use a humidifier at night
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Stop smoking
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Breathe through your nose
Over-the-Counter Options
Some helpful products include:
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Biotene Oral Rinse / Gel
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ACT Dry Mouth Mouthwash
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Mouth Kote
These often contain xylitol or moisturizing agents.
👉 For professional treatment, consult your dentist or physician.
Frequently Asked Questions (FAQ)
1. Is dry mouth a disease?
No, xerostomia is a symptom, not a disease.
2. Can anxiety cause dry mouth?
Yes, stress and anxiety can temporarily reduce saliva flow.
3. Can dry mouth go away on its own?
Yes, if caused by dehydration or medications. Chronic cases need treatment.
4. What is the best drink for dry mouth?
Plain water is best. Avoid coffee, alcohol, and sugary drinks.
5. Can dry mouth cause bad breath?
Yes, low saliva allows bacteria growth, leading to halitosis.
Final Thoughts
Dry mouth (xerostomia) might seem minor, but untreated it can harm your teeth, gums, and overall health. Identifying the cause, practising good oral hygiene, and seeking professional care are key to relief.
👉 If you suspect chronic dry mouth, book an appointment with your dentist or healthcare provider for proper evaluation and treatment.
✅ Focus Keyphrase: Dry Mouth (Xerostomia)
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