Nasal endoscopy is a way for doctors to see inside your nose and sinuses. They use a tool called an endoscope, which is a thin, flexible tube with a tiny camera and light on the end. This procedure is often done by an ear, nose, and throat doctor right in their office.

During nasal endoscopy, the doctor gently inserts the endoscope into your nostril. This lets them get a good look at your sinuses and nasal passages from the inside. Nasal endoscopy helps doctors figure out what’s going on with your nose and sinuses, and it can be used to treat certain problems or take biopsies if needed.