Why does an ear, nose and throat specialist perform nasal endoscopy?

Nasal endoscopy offers the physician specialist a reliable view of all the sinus drainage pathways. First, the patient’s nasal cavity is anesthetized; a rigid or flexible endoscope is then placed in a position to view the nasal cavity. The procedure is used to observe signs of obstruction and inflammation and to detect nasal polyps hidden from routine nasal examination. During the endoscopic examination, the physician also looks for indication of infection as well as polyp formation and structural abnormalities that may cause sinusitis.