Letter D
Dry mouth
Also known as: Xerostomia, Low saliva
Dry mouth symptom guide: what it can mean, possible causes, and when to seek care. Educational only.
Overview
Dry mouth can come from medicines, mouth-breathing, diabetes, or dehydration. It raises tooth-decay risk. Water and dental advice help.
Possible causes
- Medicines (antihistamines, some blood-pressure drugs)
- Diabetes
- Mouth-breathing
- Dehydration
- Salivary gland problems
When to see a doctor
See a clinic or dentist if dry mouth lasts, or you have pain or swallowing trouble.