Surgery for sleep apnea is a medical treatment that involves various surgical procedures aimed at removing or reducing obstructions in the airway, thereby improving breathing and reducing the occurrence of sleep apnea episodes. These procedures may include uvulopalatopharyngoplasty (UPPP), genioglossus advancement (GA), maxillomandibular advancement (MMA), and other surgeries targeting the soft tissues or bony structures of the upper airway.