Duchenne muscular dystrophy is a common motal X - Linked recessive disease, whose incidence of male birth is 1/3500. It characterized by progressivelymuscular atrophy and weakness.

• Duchenne型肌营养不良症(DMD)，是一种严重致死性X连锁隐性遗传病，发病率约为1/3500活男婴，其临床表现以肌肉的进行性萎缩和无力为特征。