婴幼儿骨髓炎少见，其临床表现X线特点与一般化脓性骨髓炎明显不同，病变多累及长管骨干骺端及骨骺，且极易侵及相邻关节并发化脓性关节炎。现将我们遇到的３例婴幼儿骨髓炎并化脓性关节炎的临床X线资料介绍如下，着重探讨其临床X线特点及骨骺、关节受累的病理解剖学基础。病例 Infantile osteomyelitis rare, the clinical manifestations of X-ray features and general purulent osteomyelitis significantly different lesions involving the long tube metaphyseal and epiphyseal, and extremely easy to invade adjacent joints complicated suppurative arthritis. Now we encountered in 3 cases of infantile osteomyelitis and suppurative arthritis clinical X-ray data are described below, focusing on its clinical features of X-ray and epiphyseal, joint involvement of the pathological anatomy. Case