What are the causes of dry mouth and throat at night during sleep?

Possible causes of dry mouth and thirst at night may include the following: 1. Environmental factors: A dry sleeping environment can cause faster evaporation of moisture inside the mouth, leading to dry mouth and thirst. It is recommended to increase indoor humidity, for example, by using a humidifier or placing a bowl of water nearby. 2. Dietary factors: Consuming excessive salty, spicy, or irritating foods for dinner, as well as eating too much late at night or drinking alcohol, may also cause dry mouth and thirst. It is recommended to adjust eating habits and maintain a light diet. 3. Medical conditions: Diseases such as diabetes and Sjögren's syndrome may cause dry mouth and thirst. If this symptom persists long-term, it is recommended to seek timely medical examination. 4. Breathing problems: Breathing through the mouth or snoring may increase moisture loss in the oral cavity, causing dry mouth and thirst. It is recommended to improve breathing habits, such as keeping the mouth closed and maintaining proper sleeping posture. Patients with concerns are advised to seek timely medical consultation.