What causes dry mouth and a bitter taste?
Sep 22, 2024
Source: Cainiu Health
Dr. Liu Chao
Introduction
In general, dry mouth and bitter taste may be caused by aging, insufficient water intake, medication side effects, oral ulcers, diabetes, or other reasons. It is advisable to avoid spicy and irritating foods in daily life, consume more fruits and vegetables rich in vitamins, maintain good oral hygiene, brush teeth regularly, and use dental floss and mouthwash to reduce the growth of oral bacteria.
Generally, dry and bitter taste in the mouth may be caused by aging, insufficient water intake, medication side effects, oral ulcers, diabetes, or other reasons. If discomfort occurs, it is recommended to seek medical attention promptly. Specific analyses are as follows:
1. Aging
With advancing age, salivary gland function gradually declines, leading to reduced saliva secretion, which causes dryness and bitterness in the mouth. Maintaining good oral hygiene habits in daily life is essential.
2. Insufficient Water Intake
When the body lacks sufficient hydration, saliva production decreases and the oral mucosa becomes dry, easily resulting in a dry and bitter sensation in the mouth. It is important to replenish fluids promptly by drinking more water or beverages with high water content.
3. Medication Side Effects
Antidepressants and antihypertensive drugs may affect salivary gland function, causing dry and bitter mouth. This may be accompanied by other drug-related adverse reactions such as dizziness or constipation. Consult a doctor to adjust the dosage or switch medications.
4. Oral Ulcers
Oral ulcers may be related to long-term consumption of spicy or irritating foods, which can damage the oral mucosa and reduce saliva secretion. Additionally, bacterial metabolic products may contribute to a bitter taste. Under medical guidance, treatments such as oral ulcer powder, watermelon frost throat lozenges, or metronidazole buccal tablets may be used.
5. Diabetes
Obesity and an unbalanced diet may trigger diabetes. High blood glucose levels reduce saliva secretion, leading to dry and bitter mouth, possibly accompanied by symptoms such as increased thirst, frequent urination, and weight loss. Blood glucose levels can be managed under a doctor’s supervision using medications such as insulin injection, gliclazide modified-release tablets, or metformin hydrochloride tablets.
In daily life, avoid consuming spicy and irritating foods. Eat more fruits and vegetables rich in vitamins, maintain good oral hygiene, brush teeth regularly, and use dental floss and mouthwash to reduce bacterial growth in the mouth.
