近年来 ,人们日益认识到 ,生殖系统极易受到环境污染物的影响 ,由于生殖功能涉及人类种族延续与人口素质 ,生殖功能的变动趋势引起了医学界、政策制订者与大众的高度关注。男性缺乏女性所具有的明显可测量的生殖周期以及确定的妊娠结局 ,因而精液质量分析就成为男性生殖功能评 In recent years, people have increasingly realized that the reproductive system is vulnerable to environmental pollutants. As the reproductive function involves the continuation of human race and the quality of the population, the changing trend of reproductive functions has attracted the attention of the medical community, policy makers and the general public. Men lack the apparently measurable reproductive cycle and defined pregnancy outcomes that women have, and thus semen quality analysis becomes a male reproductive function assessment.