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作者对输精管结扎术后３、９个月的成年大鼠附睾进行超微结构观察，结合其组织学改变进行分析。结果发现，结扎后的附睾呈扩张性病理损害。超微结构显示：结扎后３个月，附睾上皮主细胞的吞噬与消化功能明显增强，结扎后９个月出现了细胞变性现象。结扎后附睾受损可能是复通后再孕率低的另一重要原因。
The authors observed the ultrastructure of the epididymis of adult rats 3 and 9 months after vasectomy and analyzed their histological changes. The results showed that, after ligation of the epididymis was dilated pathological damage. The ultrastructure showed that the phagocytic and digestive function of the main epididymal epithelial cells increased significantly 3 months after ligation, and cell degeneration appeared at 9 months after ligation. Epididymal ligation after ligation may be another important reason for the low rate of pregnancy and then pregnancy.