Snoring is related to airway narrowing, such as obesity, nasal diseases, pharyngeal diseases can lead to. 1. Obesity: obese people are more likely to snore, because obesity is often accompanied by tongue hypertrophy, soft palate, uvula, pharyngeal wall due to fat accumulation, easy to cause airway narrowing. 2. Nasal diseases: such as deviated nasal septum, nasal polyps, hypertrophic rhinitis, nasal cavity and other diseases, due to the narrowing of the airway, airflow restriction, resulting in snoring. 3. Pharyngeal diseases: such as nasopharyngeal tumors, adenoids, enlarged tonsils, uvula, tongue hypertrophy, etc., can lead to narrowing of the airway, and due to the excessive friction of airflow on the mucous membrane of the pharynx or the mucous membrane of the root of the tongue, it can produce loud snoring. It is recommended that the patient should consult the doctor in time to check the cause and condition, and cooperate with the physician to treat the disease actively.