Methods: Included in the study were 60 azoospermic and oligozoospermic patients, as well as 60 fertile men as controls.Multi-PCR was used to analyze the deletion of DAZ gene.

• 方法：应用多重PCR技术对60例无精、少精患者和60例正常生育力男性进行DAZ基因检测，并对60例无精、少精患者进行外周血染色体检查。