Overall, it is generally not very severe. Most patients with nasal polyps have localized conditions, which may be accompanied by clinical symptoms such as nasal congestion, runny nose, reduced sense of smell, headaches, and dizziness. Initially, a nasopharyngoscopy is required to determine the specific range of the polyps and clarify if there are any other pathologic conditions. If the diseased area is extensive, further nasal sinus CT scans may be needed to determine if there are any abnormalities in the sinuses.

In terms of treatment, conservative treatment is recommended for patients with small polyps and non-significant symptoms. However, if the polyps are numerous and there are notable clinical symptoms, surgical removal should be considered. After surgery, regular follow-ups are necessary to monitor the recovery situation.