More than 13,000 operative interventions were conducted under out-patient conditions during a period of 5 years. From their analysis, the authors believe that the conditions for raising surgical activity in an out-patient clinic are as follows: the creation of operating-dressing ward blocks and wards for temporary stay, organization of transportation of patients to their home and subsequent visiting by medical personnel. Careful selection of patients, adequate preoperative management, good anaesthesiological service and postoperative care improve the results of treatment.