儿童臀肌挛缩症是一种医源性疾病，多因长期反复臀部肌肉注射药物所致。近年来，我们收治26例，均经手术矫正，现报告如下。临床资料：本组年龄4～11岁，平均6岁；均有臀部反复注药史，药物多为青霉素及退热剂。单侧2例，双侧24例。临床主要表现为步态异常，行走、下蹲困难或有 Gluteal muscle contracture in children is a iatrogenic disease, mostly due to long-term repeated intramuscular injection of drugs. In recent years, we admitted 26 cases, both by surgical correction, are as follows. Clinical data: The group aged 4 to 11 years old, an average of 6 years old; have repeatedly injected buttock history drug mostly penicillin and antipyretics. 2 cases on one side and 24 cases on both sides. The main clinical manifestations of abnormal gait, walking, squatting difficulties or have