Slipped capital femoral epiphysis is relatively rare disorder. In this disorder, the femoral capital epiphysis usually slips to the posteromedial and distal direction. This disease ofter redults in serious complications such as AVN and chondrolysis even after proper treatment. From March 1984. to Febrary 1991. We experienced 15 cases of slipped capital femoral epiphysis in the severance Hospital. In this study 10 patients (11 hips) were evaluated. The mean follow-up period was 14.8 months. The results of this study were as follows: 1. The male to female sex ratio was 7: 3 with the mean age at onset of the disease being 12 years and 8 months (10 to 14 years) in males and 11 years and three months (range: 10 to 12 years) in females. Four cases occurred in the right hip, five in the left, and 1 case had bilateal involvement. 2. The mean height was 61.6 percentile and the mean weight 83.6 percentile, according to Korean growth and developmental standard. nine cases were obese. 3. Five cases had a history of minor trauma on the affected hip area. In one case SCFE developed in association with the pyogenic hip arthritis. 4. Hypertension was associated in one case, contralateral Osgood-schlatter disorder in one case, and hypogonadism in one case. 5. Two cases were of the acute type; two, acute on chronic type; and seven, chronic type. 6. According to the radiological grades of slipping, eight cases were of the mild type; two, moderate; one, severe. 7. Eight cases were treated by pin fixation in situ; two, by gentle closed reduction and pin fixation; and one, by open reduction and pin fixation. 8. Avascular necrosis of the femoral head developed in one case; Progression of slippage developed in another case which was treated by a second operation.