Snoring, also known as snoring or snoring, is a common symptom in otolaryngology and can be caused by a variety of reasons. 1. Abnormal anatomical structure or lesion of upper airway: including all factors that cause narrowing or obstruction of nasal cavity and nasopharynx, such as deviated nasal septum, nasal polyps, chronic rhinosinusitis, enlarged turbinates, enlarged adenoids (the main cause of snoring in children), narrowing or atresia of nasopharynx, etc.; factors that cause narrowing of oropharyngeal cavity, such as enlarged palatine tonsils, thickened soft palate, thickened lateral wall of pharynx, excessive length of uvula, thickened tongue root, enlarged tongue body The abnormalities of the maxillofacial bone framework can cause snoring. 2, systemic factors: such as obesity, pregnancy, menopause and perimenopause, low thyroid function, diabetes and other systemic diseases can also induce or aggravate snoring. 3, other factors: central nervous system diseases, neuromuscular diseases, etc. The patient can be induced or aggravated by the relaxation of the throat muscles after falling asleep. Senior people, especially elderly men, can cause or aggravate snoring because their own muscles are relaxed and the pharyngeal muscles are even more relaxed when they are asleep. In summary, snoring can be caused by a variety of reasons, the common factors are adenoid hypertrophy, tonsil hypertrophy, obesity, tobacco and alcohol addiction and advanced age, etc.