Nasal polyps are a relatively common otolaryngology disease, which can be comprehensively assessed through nasal endoscopy or sinus CT scan. Generally speaking, nasal endoscopy is more intuitive, allowing direct observation of the extent and severity of polyps within the nasal cavity. If a sinus CT scan is performed, it has diagnostic and reference value for multiple nasal polyps, but it might not be very clear if there are only a few polyps. In terms of treatment, if there are numerous nasal polyps and medication is ineffective, surgical treatment should be considered. If the nasal polyps are limited and the clinical symptoms are mild, medical conservative treatment is recommended, but regular follow-up examinations are necessary to monitor the effect. (Specific medications should be used under the guidance of a doctor.)