University Department of Growth and Reproduction, Rigshospitalet, Copenhagen DK, Denmark.
Asian J Androl. 2010 Jan;12(1):95-8. doi: 10.1038/aja.2008.43.
Several recent studies have shown that the fecundity of a man decreases progressively with sperm concentrations below 40 million spermatozoa per mL. Therefore, it is unfortunate that the new World Health Organization guidelines for semen analysis recommend lowering the lower cutoff value for normal sperm concentration from 20 to 15 million spermatozoa per mL. As a result large groups of subfertile men across the world may not receive appropriate andrological help in the future.
几项最近的研究表明,男性的生育能力随着每毫升精液中精子浓度低于 4000 万而逐渐下降。因此,不幸的是,新的世界卫生组织精液分析指南建议将正常精子浓度的下限从每毫升 2000 万降低到 1500 万。结果,全世界许多亚生育能力的男性可能在未来无法获得适当的男科帮助。