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目的：为输精管结扎术、吻合术的临床应用提供形态学基础。方法：选用３０具成人男性尸体对输精管精索部进行了解剖学观测。结果：输精管精索部位于精索后方，睾丸动脉位于中央，静脉位于最前方，生殖股神经生殖支位于输精管精索部外侧。输精管精索部长左侧７．６±２．９（５０～１１．３）ｃｍ；右侧７．３±３．２（５．２～１１．０）ｃｍ。其内径左、右侧均为０．６±０．１（０．４～０．８）ｍｍ。经统计学处理（Ｐ＞０．０５）左右侧均无显著性差异。结论：在输精管结扎术、吻合术手术时应注意保护输精管外侧的生殖股神经生殖支、输精管精索部管径小、壁厚、吻合成功率高。因管径小、术后不宜安放支架，以免术后引起管腔阻塞。
Objective: To provide morphological basis for the clinical application of vasectomy and anastomosis. Methods: Thirty adult male cadavers were used for anatomical observation of the spermatic cord spermatic cord. Results: The vas deferens spermatic cord was located behind the spermatic cord. The testicular artery was located in the center and the veins were in the forefront. The reproductive femoral nerve was located outside the spermatic cord. The spermatic sphincter minister left 7.6 ± 2.9 (50 ~ 11.3) cm; the right 7.3 ± 3.2 (5.2 ~ 11.0) cm. The inner diameter of the left and right are 0.6 ± 0.1 (0.4 ~ 0.8) mm. Statistically (P> 0.05) left and right no significant difference. Conclusion: In the vasectomy and anastomosis surgery, attention should be paid to protect the genital branch of reproductive nerve outside the vas deferens. The spermatic cord of the vas deferens has small diameter, thick wall and high anastomosis. Because of small diameter, after surgery should not be placed stent, so as to avoid postoperative lumen obstruction.