输精管是一种需在手术中仔细加以辨认、保护,以免损伤的结构。常规体检时则很少触摸它。1918年首次报告输精管先天性缺如的临床病例。生殖道异常同时伴有肾异常的情形在本世纪初才得以重视。生殖道缺陷伴有孤立肾者较之伴有任何其它类型肾畸型更为多见。生殖道缺陷者中女姓的70%,男性20%患者孤立肾。先天性输精管缺如源于中肾管结构的异常。估计40%肾脏病患者有先天性肾畸型的基础。80%发育不良的肾脏具有进一步罹患感染,梗阻和形成结石的倾向。单侧先天性输精管缺如除提示生育力低下甚或不能生育外,还是唯一表示可能存在肾脏畸型的临床标志。单侧输精管缺如的患者80%没有同侧肾脏。即便有肾脏存在,也可能受到诸如肾异位,旋转不良,融 Vas deferens is a structure that needs to be carefully identified and protected during surgery to avoid injury. Routine physical examination is rarely touched it. 1918 First report of vas deferens congenital absence of clinical cases. Reproductive tract abnormalities accompanied by abnormalities in the kidney at the beginning of this century to be valued. Reproductive tract defects associated with isolated kidney are more common with any other type of kidney disease. 70% of female patients with genital tract defects, and 20% of male solitary kidney. Absence of congenital vas deferens stems from the abnormalities of the renal tubular structure. It is estimated that 40% of patients with kidney disease have the basis of congenital kidney disease. 80% of dysplastic kidneys have a further tendency to develop infection, obstruction and stone formation. Unilateral congenital absence of vas deferens in addition to suggesting that fertility is low or even can not give birth, or the only sign of possible clinical manifestations of kidney malformations. 80% of patients with unilateral vas deferens have no ipsilateral kidneys. Even if the kidneys exist, may also be affected, such as renal ectopic, poor rotation, financial