Abstract
A case of a 27 year old male with primary enuresis with a history of unsuccessted bladder control since birth was treated with cognitive-behavior therapy. A variation of the Kimmel method was flexiblly applied to extend bladder control time. Simultaneously, visual feedback which consisted of an ultrasonographic image of the patient's extended bladder was shown to him to reinforcement retention control training and to change his strong belief that his bladder size does not increase with the accumulation of urine. The discussion focuses on the simplisity of the non invasive technique of visual feedback therapy which increased the motivation of the patient.