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输精管结扎、堵塞术有许多优点,但由于精液通道被阻断,生精过程中不断产生的精子、睾网液、附睾液必然滞留于输精管近睾端及附睾管中,导致不同程度的附睾郁积,出现了不少问题。故研究“通畅而不育”即可逆性非阻塞性的避孕方法已成为国内外高度关注的问题。实验证明,结扎后的输精管近睾端及尾部附睾管有明显扩张,上皮变薄,附睾主细胞出现微绒毛疏
Vasectomy, plugging has many advantages, but due to the semen channel is blocked, the spermatogenesis, testicular fluid, epididymal fluid in the process of spermatogenesis inevitably reside in the vas deferens proximal and distal to the testis and epididymis tube, resulting in varying degrees of epididymal stasis , There have been many problems. Therefore, the study of “patency and infertility” that reversible non-obstructive contraception has become a highly concerned issue at home and abroad. Experiments show that the ligation of the vas deferens proximal and cauda epididymal canal significantly expanded, thinning of the epidermis, main epididymal microvilli sparse