连续射精对正常男性精液分析参数的影响

目的 :探讨连续射精对正常男性精液分析参数的影响。　方法 :8名正常男性逐日手淫取精 ,共 8d。采用世界卫生组织人类精液检验手册方法测定精液体积、pH值、精子密度、总精子数、存活率和活动率 ,进行统计学分析。　结果 :精液体积、总精子数逐日下降 ,从第 5d起至第 8d非常显著低于第 1d(P <0 .0 1)。精子密度亦呈逐渐下降趋势 ,但无显著性差异。精子存活率和精子活动率 (a +b级 )均呈逐渐上升趋势 ,但是仅第 7d显著高于第1d(P <0 .0 5 )。　结论 :人类精液体积、总精子数随射精频度增加而显著降低 ,精子存活率和活动率增加。频繁射精并不影响正常男性精液质量。

Effect of Successive Ejaculation on Semen Analysis Parameters in Normal Men

Objective: To study the effect of successive ejaculation on semen analysis parameters in normal men. Methods: Eight ejaculates were collected at daily intervals from 8 normal men. The semen parameters were analyzed according to WHO laboratory manual for the examination of human semen and sperm-cervical mucus interaction. Results: The semen volumes and total sperm counts decreased gradually day by day, significantly lower from the 5 th to the 8 th day than the 1 st(P< 0.01). The sperm densities also declined day by day, but not significantly. The sperm viability and motility (a + b grade) presented an increasing trend, but with no significance except on the 7 th day. Conclusion: With the increase of the ejaculatory frequency, human semen volumes and the total counts significantly decrease, while sperm viability and motility gradually increase. Successive ejaculation does not affect the quality of human semen.