Duchenne 型肌营养不良症是进行性肌营养不良症中较为常见的一种类型。它是Duchenne 1868年首次对此病(Duchennemuscular dystrophy 简称 DMD)作临床特点描述的。是一种少见的性连锁遗传病。绝大多数发生于男孩,在出生男女中该病的发病率为1/3000。本病国外早有报导,我国1955年陈学诗曾首次报告5个家系,我院于1986年发现一家系,现报告如下: Duchenne muscular dystrophy is a more common type of progressive muscular dystrophy. It is Duchenne first described in 1868 for the clinical features of this disease (Duchennemuscular dystrophy referred to as DMD). Is a rare sex linked disorder. The vast majority occur in boys, and the incidence of the disease among men and women of birth is 1/3000. This disease has long been reported abroad. In 1955, Chen Xueshi first reported 5 pedigrees in our country. Our department found a pedigree in 1986 and is reported as follows: