从过去的一个世纪来看 ,男性生殖健康的状况不容乐观。一项综合了从 1934年至 1996年欧洲和北美的 10 1项有关精子数量报告的调查表明 ,在过去的半个世纪中男性精子的数量下降了 5 0 %左右[1] 。同时 ,西方国家睾丸肿瘤的发病率也不断地上升[2 ] 。尽管上一世纪末在男性不育的 In the past century, the status of male reproductive health is not optimistic. A survey of 101 sperm count reports from 1934 to 1996 in Europe and North America shows that the number of male sperm has dropped by about 50% in the past half century [1]. At the same time, the incidence of testicular cancer in Western countries also continue to rise [2]. Despite being sterile at the end of the last century