Have sperm counts deteriorated over the past 20 years in healthy, young Japanese men? Results from the Sapporo area.

@article{Itoh2001HaveSC,
  title={Have sperm counts deteriorated over the past 20 years in healthy, young Japanese men? Results from the Sapporo area.},
  author={Naoki Itoh and Fujio Kayama and Takao Tatsuki and Tetsurou Tsukamoto},
  journal={Journal of andrology},
  year={2001},
  volume={22 1},
  pages={
          40-4
        }
}
Changes in semen quality of healthy men is a controversial issue throughout the world. It is suspected that many chemical endocrine disrupters may affect the quality of semen. Although exposure to them may be extensive in Japan, no evidence of changes in semen quality has been reported. In this study, changes in semen volume and sperm counts were analyzed over 20 years in the Sapporo area of Japan. Semen volume and sperm counts were measured in 254 and 457 normal, healthy volunteers who lived… CONTINUE READING

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