Fifty children with encopresis were admitted to the Pediatric Surgery Department of Sişli Children's Hospital between October 1, 1987 and January 1, 1990. Two treatment regimens were used. Thirteen patients received mineral oil and glycerine suppositories and 37 patients received rectal irrigations and Lactulose. Five patients were lost to follow-up and 40 patients have completed their six month treatment schedule. The results of our study suggest that encopresis is a complex abnormal motility disorder, requiring a multidisciplinary approach. Best results will be obtained by good parent-child-doctor cooperation and close follow-up.