铅不仅对生殖过程的各个环节产生直接毒害作用 ,而且还影响性激素的合成及下丘脑 -垂体 -性腺轴的调节功能。铅对男性生殖功能的影响主要表现在损害或干扰精子的正常产生过程、性功能减退、不育、子代发育异常或先天性疾患等方面。据报道 ,随着血铅水平的升高 ,铅作业工人的精 Lead not only has a direct toxic effect on all aspects of the reproductive process, but also affects the synthesis of sex hormones and the regulatory function of the hypothalamus-pituitary-gonadal axis. Lead on male reproductive function mainly in the damage or interfere with the normal process of sperm production, sexual dysfunction, infertility, abnormal offspring or congenital disorders and so on. It is reported that with the increase of blood lead level, the lead workers are fine