目的　探讨口服蓖麻油在输尿管结石诊断及治疗中的价值。方法　对拟诊输尿管结石而充盈膀胱后检查不满意者 ,嘱患者当晚临睡前口服蓖麻油 30 ml,次日空腹并充盈膀胱后检查。结果　 6 90例患者 ,除 4 7例外 ,均能清晰显示结石的部位 ,超声诊断符合率为 93%。结论　口服蓖麻油对输尿管结石诊断及治疗 ,具有一定的临床实用价值。 Objective To investigate the value of oral castor oil in the diagnosis and treatment of ureteral calculi. Methods to be diagnosed with ureteral calculi filling the bladder were not satisfied, Zhu Huanzhe night before going to sleep oral castor oil 30 ml, fasting and filling the bladder the next day after examination. Results 6 90 cases, with the exception of 47 cases, can clearly show the location of stones, the diagnostic accuracy of ultrasound was 93%. Conclusion Oral castor oil has certain clinical value in the diagnosis and treatment of ureteral calculi.