Snoring can be caused by upper airway obstruction, the upper airway including nasal cavity, can cause obstruction of the nasal cavity of the disease are chronic rhinitis, nasal septum deviation, nasal polyps, inverted papilloma, etc., nasal obstruction, the breath can not be reached by the anterior nostrils of the oropharynx and the trachea lead to snoring, sometimes there can be suffocation, and so on. Nasal endoscopy can be found in the nasal cavity blocked parts need to be surgically discharged, after the removal of the blocked parts of the snoring can be lifted, such as chronic rhinitis, deviated septum feasible nasal endoscopy nasal expansion surgery, expand the nasal cavity space, conducive to the passage of airflow through the nasal cavity. Nasal polyps and inverted papilloma are due to mechanical obstruction, and after removal, the nasal space can be enlarged to facilitate ventilation, thus lifting snoring.