The causes of snoring are as follows: 1. poor nasal ventilation, such as nasal polyps, enlarged turbinates, deviated nasal septum, sinusitis, etc. resulting in poor nasal ventilation. 2. tonsillar hypertrophy resulting in narrowing of the pharyngeal cavity. 3. excessive obesity resulting in a thick, short neck and fatty accumulation in the soft palate, resulting in narrowing of the pharyngeal cavity and causing snoring. 4. posterior tongue drop, mostly due to alcohol consumption, fatigue and age-related muscle tone reduction, causing posterior tongue drop. 5. anatomical factors, such as small jaw deformity, can cause snoring. 5. Anatomical factors, such as small jaw deformity, can cause snoring. If the snoring is treated, it should be examined by an ENT doctor, and if necessary, PSG, or sleep apnea monitoring, should be done to determine the degree of snoring and to see if there is obstructive sleep apnea. If there are anatomical factors, such as nasal polyps, deviated nasal septum and narrowing of the pharyngeal cavity, enlarged tonsils, etc., surgical treatment is required. The above means are the most common means of treating snoring. If you snore occasionally, you can adjust your sleep habits according to the cause of your snoring. For example, often sleep on your side, do not lie on your back, do not drink alcohol, do not be too tired, etc. The above methods can also reduce snoring.