Septic arthritis of the hip in children has multiple sequelae and may result in severe disability. Significant morbidity can be prevented by early recognition and treatment. The authors reviewed 13 children with 14 hips with sequelae of septic arthritis of the hip. All of children had history of hip septic arthritis before age of 4 years. Six were male subjects, and 7 were female subjects. We evaluated the history, clinical findings and radiographs of all children who had been treated at the Imam Khomeini hospital between 1986 and 2001 for septic arthritis of the hip. Final results of operations in patients include range of motion, presence or absence pain, joint stability, limb-length discrepancy were assessed. Three hips had mild pain in usual daily activities and one patient with cerebral palsy experienced hip instability. Most of patients (80%) had flexion contracture about 10-15 degrees .Final results showed average limb length discrepancy was about 2.8 cm. Septic arthritis of the hip in children may result in a spectrum of residual problems and the significant complications can be averted by early detection and treatment. Treatment in younger age cause better outcome.