Nasal polyp is an inflammatory disease, which is caused by long-term chronic inflammation or allergic disease, i.e. allergic rhinitis, resulting in a high degree of edema of the nasal mucosa and the formation of a swelling, but not a true tumor. After the swelling grows to occupy the nasal ventilation channel, it will cause nasal blockage, loss of smell or loss of smell, and some patients are accompanied by stuffy head and more nasal mucus. When the nasal polyp grows to the posterior nasopharynx, blocking the nasal cavity and ear passages eustachian tube, it will cause hearing loss. If nasal polyps grow in the nasal cavity, nasal endoscopic surgery is given and comprehensive treatment is given after the surgery. If there is a deformity of the nasal structure at the time of surgery, such as a deviated septum, at the same time, corrective surgery of the septum should be performed, and postoperative treatment of the causative factors, such as chronic rhinitis, allergic rhinitis comprehensive treatment, follow the doctor’s instructions for regular follow-up to reduce the recurrence of nasal polyps.