Does nasal endoscopy cause permanent damage to the nose?
Under normal circumstances, properly performed nasal endoscopic examinations or treatments do not cause permanent damage to the nose. If any abnormalities occur, prompt medical consultation is recommended. Detailed analysis is as follows:

Nasal endoscopy is a common diagnostic and therapeutic tool in otolaryngology. During examination or treatment, procedures are carried out by trained physicians who adjust the angle and pressure of the instrument according to the patient's nasal anatomy, minimizing irritation to the nasal mucosa. Most individuals may experience temporary symptoms such as nasal congestion or minor bleeding after the procedure. These symptoms typically resolve as the mucosa heals and do not result in permanent injury or impair normal nasal function.
However, if the procedure is improperly performed—such as through incorrect instrument use or excessive force—it may lead to severe mucosal injury, worsening of deviated nasal septum, or even nasal adhesions. Nevertheless, such complications are rare and usually associated with non-standard techniques or pre-existing complex nasal pathology, rather than being common outcomes of nasal endoscopy.
After undergoing nasal endoscopic procedures, if persistent nasal obstruction, significant bleeding, or increasing pain occurs, patients should promptly contact their doctor for re-evaluation to avoid delays in appropriate management.