Abstract
A 22-year-old male underwent Bil-tonsillectomy and pharyngoplasty for Sleep Apnea Syndrome. Numbness and pain in the left hand appeared after the operation. A final diagnosis of reflex sympathetic dystrophy (RSD) as a surgical complication was made. There are many kinds of initiating events for RSD. It is recommended that the patient be examined carefully with a good understanding of RSD for early diagnosis.