When patients experience symptoms of nasal congestion, it may cause symptoms of snoring. Nasal congestion is often caused by acute and chronic rhinitis, acute and chronic sinusitis, allergic rhinitis and other diseases. Some patients may have a deviated nasal septum, polyps, papillomas and other benign and malignant growths in the nasal cavity, or even enlarged adenoids in the nasopharynx, all of which may cause significant nasal congestion. At night, it is easy to produce more obvious snoring and continuous open-mouth breathing, and even produce intermittent breath-holding symptoms, which will seriously affect the quality of sleep, resulting in a drop in blood oxygen levels during sleep. Therefore, if the patient has obvious nasal congestion causing snoring symptoms, need to further detailed examination, distinguish the cause of the disease, and then take targeted treatment to improve the measures.