What causes dry mouth and throat at night during sleep?
Sep 22, 2024
Source: Cainiu Health
Dr. Zhang Xiuhong
Introduction
Dry mouth and throat at night may be caused by improper breathing patterns, nocturnal dehydration, hyperthyroidism, diabetes, Sjögren's syndrome, or other reasons. If discomfort occurs, it is recommended to seek medical attention promptly. In daily life, one should maintain appropriate indoor humidity, eat a light and low-salt diet, drink adequate amounts of water, avoid excessive physical activity, and ensure sufficient sleep.
Generally, dry mouth and throat at night may be caused by improper breathing methods, nocturnal dehydration, hyperthyroidism, diabetes, Sjögren's syndrome, or other reasons. If discomfort occurs, it is recommended to seek medical attention promptly. Specific analysis is as follows:
1. Improper Breathing Method
During sleep, many people tend to breathe through the mouth rather than the nose, which can lead to evaporation of moisture in the mouth and throat, causing dryness and discomfort. It is recommended to adjust breathing habits by trying to breathe through the nose and using a humidifier to maintain indoor air moisture.
2. Nocturnal Dehydration
Consuming excessive diuretic foods can promote kidney urine production, reducing the body's water reserves. Especially during sleep, when opportunities for rehydration are limited, dehydration may worsen, leading to dry mouth and throat at night. Ensure adequate fluid intake during the day and avoid diuretic beverages after dinner.
3. Hyperthyroidism
Hyperthyroidism is usually caused by excessive secretion of thyroid hormones, which accelerates metabolism and increases fluid loss from the body. This may result in symptoms such as dry mouth and throat at night, along with heat intolerance, excessive sweating, and palpitations. Patients may take medications such as methimazole tablets, propylthiouracil tablets, or propranolol hydrochloride tablets under medical supervision.
4. Diabetes
Diabetes is typically caused by insufficient insulin secretion or impaired insulin function. In a state of high blood sugar, frequent nighttime urination accelerates fluid loss, leading to dry mouth and thirst, often accompanied by symptoms such as increased thirst, weight loss, and fatigue. Treatment may include medications such as recombinant human insulin injection, metformin hydrochloride tablets, or gliclazide modified-release tablets, used under a doctor’s guidance.
5. Sjögren's Syndrome
Sjögren's syndrome is primarily caused by autoimmune dysfunction damaging exocrine glands. The immune system mistakenly attacks the body's own salivary glands, potentially reducing glandular secretion and failing to provide sufficient saliva to lubricate the mouth, resulting in dry mouth. Other symptoms may include dry eyes and difficulty swallowing. Patients may be treated with medications such as hydroxychloroquine sulfate tablets, total glucosides of paeony capsules, or methotrexate tablets as advised by a physician.
In daily life, it is important to maintain appropriate indoor humidity, follow a light and low-salt diet, drink adequate water, avoid excessive physical activity, and ensure sufficient sleep.
