Among the 69 simple nephrectomy cases, 3 were kidney atrophy, 46 were kidney dropsy, 3 were kidney maldevelopment, and 7 were kidney tuberculosis. All the kidneys were confirmed to have no function by radiological renal pictures. 单纯肾切除患者中肾脏萎缩13例,肾脏积水46例,发育不良3例,肾脏结核7例,均经肾图检查证实患肾无功能。