Methods Data of 3 777 infertile couples were collected.Data of infertile men were analyzed, including male physical examination, semen fetation and gene tests.

• 方法:收集3 777对不孕夫妇的孕产史及不孕不育病因检查结果，对男性不育患者资料进行分析，包括男性生殖专科体格检查、精液常规分析、遗传学检查等。