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输精管结扎术系目前世界上男性最常用的避孕措施之一。随着输精管复通技术的进展及再婚率增高,每年要求做输精管复通的人越来越多。输精管复通术后生育调查表明其生育力低下,怀孕率为40-70％不等,其原因目前认为与精子抗体产生、神经损伤及附睾功能受损有关,但动物实验显示输精管结扎术后也会产生各种睾丸损害。有关人类输精管结扎对睾丸组织的长期影响报道甚少,本文就有关这方面的研究作一简单复习。一、输精管结扎后睾丸病理改变(一)曲细精管和Sertoli细胞:在人类已经观察到输精管结扎后睾丸曲细精管具有明显改变,其特征如下:1.生精细胞排列紊乱,精子生成停滞:Fletcher(1974)等对13例输精管结扎男性
Vasectomy is one of the most commonly used contraceptive methods in men around the world. With the progress of vas deferens recurrent technology and the increase of remarriage rate, more and more people are required to do vas deferens recurrent every year. Reproductive postoperative reproductive vasectomy survey showed that their fertility is low, the pregnancy rate of 40-70%, the reason for the current sperm antibodies, nerve damage and epididymis impaired, but animal experiments show vasectomy Will produce a variety of testicular damage. There are few reports on the long-term effects of human vasectomy on testicular tissue. This article will briefly review the research in this field. First, the pathological changes of the testis after vasectomy (A) seminiferous tubules and Sertoli cells: After human vas deferens have been observed in the testicular seminiferous tubules have significant changes in the characteristics of the following: 1 spermatogenic cells arranged disorder sperm Stagnation: Fletcher (1974) et al 13 men with vasectomies