Out patient surgery is becoming more and more popular with experience. A series of 7,250 operations performed during one year at Ste-Justine Hospital forms the basis of the presentation. A wide variety of procedures are now done by the pediatric surgical specialities on an out patient basis. Proper selection of patients, operations and families is mandatory. A low complication rate of 1.2% can be expected as well as high patient, family and staff satisfaction.