Background: Endotracheal intubation for general anesthesia oflen leads to trauma of the airway mucosa resulting in postoperative sore throai. Postoperative sore throai is a common complication of anesthesia and can lead to dissatisfaction after surgery. Many factors can contribute to postoperative sore throai, but one faclor that has the strongest association is the cuff of endotracheal tube wh…