Nasal endoscopy surgery is surgery of ear, nose, and throat by the use of an endoscope. The endoscope is an instrument doctor inserts into your nose and guides it through your sinus and nasal passages as they view the images of the area they're examining. The procedure helps with diagnosing and treating different health conditions. This surgery is needed in case of sinonasal symptoms, like facial pressure or pain, mucopurulent drainage, decreased sense of smell or nasal congestion or obstruction that can’t be treated by medicine. Nasal endoscopy (Rhinoscopy) is typically performed by an otolaryngologist or ENT specialist where they have a direct, high-quality and magnified vision as they evaluate your sinus and nasal passages.