The patient’s snoring is always related to smoking, but not all, after smoking is particularly easy to produce tar, nicotine or carbon monoxide, stimulating the pharyngeal mucosa resulting in congestion or mucosal relaxation, will lead to the pharyngeal cavity becomes narrow, and thus snoring, often smoking nose will also appear nasal congestion symptoms, so sleep nasal congestion, pharyngeal mucosa narrowing, will trigger the patient to snore. But sometimes obesity or overexertion in life, incorrect sleeping posture, excessive head tilting back, also easy to cause patients to snore, it is best to go to the hospital for detailed examination to clarify the specific cause of further symptomatic treatment.