Dry throat at night may be related to nasal septum deviation, reflux pharyngitis, chronic dry pharyngitis and so on.
1. Deviated nasal septum: Deviation of nasal septum bone and cartilage leads to nasal ventilation dysfunction. Due to the relatively smooth ventilation of the oral cavity during sleep and open-mouth breathing, oropharyngeal water evaporation is too fast and the throat is dry and uncomfortable.
2. Reflux pharyngolaryngitis: gastric contents reflux to the throat, stimulate the mucous membrane of the throat, resulting in dry throat discomfort. Gastroesophageal reflux is easy to occur at night when you lie down, and your throat feels dry and obvious.
3. Chronic dry pharyngitis: chronic inflammation of the pharynx persists, leading to dry mucous membrane of the throat and reduced secretion of the glands. During the day, you can drink water to replenish, and after sleeping at night, the pharyngeal gland secretion physiological reduction, the dry feeling is more and more.
The dryness of the throat at night may also be due to obstructive sleep apnea open-mouth breathing and other causes, you can actively consult a doctor for a systematic examination, a clear diagnosis and cause.