Endoscopic sinus surgery is a minimally invasive surgical procedure to remove blockages of the sinuses for recurring or persistent sinus infections. The surgery does not require any external incisions and does not alter the appearance of your nose. The whole procedure is performed through the nostrils and almost all of the procedures are performed on an outpatient basis with patients going home the same day. During the procedure, a long thin rigid tube, called an endoscope, which has a light and a video camera, is inserted into the nose to visualize the inside of the nasal cavity and sinuses. This allows your surgeon to pass specialized surgical instruments through the nostrils to perform the surgery. In addition to opening up all of the affected sinuses, your surgeon may also address other issues at the same time, such as performing a septoplasty (to correct a deviated nasal septum), reducing the inferior turbinates (to allow for wider breathing passages) and removing polyps and other benign tumors, for example. Most patients experience a major relief in symptoms such as facial pain and swelling, difficulty breathing and headaches.