儿童三角肌挛缩较为少见,反复的肌肉注射史是最常见的病因,也可以由其他原因所致,如感染或外伤等。三角肌挛缩具有典型的临床表现,如可触及的纤维索条、肩内收受限、翼状肩及挛缩部位皮肤凹陷等,根据这些典型的临床表现一般不难诊断。但对一些不具有典型临床表现,尤其是无反复? Children deltoid contracture is relatively rare, repeated intramuscular injection history is the most common cause, but also by other causes, such as infection or trauma. Deltoid contracture with typical clinical manifestations, such as palpable fiber cord, shoulder limit, the wing-shaped shoulder and contracture of the skin depression, etc., according to these typical clinical manifestations is not difficult to diagnose. However, some do not have the typical clinical manifestations, especially without repetition?