输精管结扎术是目前世界上应用最广泛、最安全有效的男性绝育措施。但此种手术仍存在一定的失败率。而输精管结扎术后再通则是失败的主要原因之一。近年来关于输精管结扎术后再通的临床报告中,经常发现有“时通时不通”的病例,我们把此种病例称为“一过性再通”。本文着重对临床长期追踪观察确定为再通的4个特殊病例进行了临床和病理分析,为进一步提 Vasectomy is currently the world’s most widely used, the most safe and effective male sterilization measures. However, there is still a certain failure rate of such surgery. The vas deferens ligation and then pass is one of the main reasons for the failure. In recent years, vasectomy on the recanalization of clinical reports, often found “when the passage of time unreasonable” cases, we call this case of “transient recanalization.” This article focuses on clinical long-term follow-up to determine the recanalization of the four special cases of clinical and pathological analysis, to further improve