Fecal endoscopic sinus surgery (FESS) is a minimally invasive procedure used to visualize, diagnose, and treat sinus problems. Your doctor will gently insert an endoscope into your nostril to examine the area that needs treatment, then use specialized instruments to restore ventilation and drainage of the sinus-nasal complex.

Nasal polyps cause symptoms of nasal congestion, nasal obstruction, even inability to breathe through the nose, loss of smell, and nasal speech. Early diagnosis and treatment of nasal polyps can limit dangerous symptoms.

Nasal polyps are conditions that occur in the lining of the nose and the sinuses, which are the four empty spaces above and behind the nose. However, nasal polyps are not usually considered pathological.