目的探讨输尿管镜下钬激光治疗输尿管中下段结石的临床疗效及治疗体会。方法利用输尿管镜及钬激光系统治疗98例输尿管中下段结石。结果 98例患者中96例患者碎石成功,成功率为98%(96/98);96例患者平均手术时间为30 min(22～58 min);平均住院天数为4.5 d(2～7 d)。结论输尿管镜下钬激光碎石术具有创伤小、恢复快、并发症少等优点,是一种安全高效的处理输尿管中下段结石方法。 Objective To investigate the clinical efficacy and treatment of ureteroscopic holmium laser in the treatment of lower ureteral calculi. Methods Ureteroscopy and holmium laser were used to treat 98 cases of middle and lower ureteral calculi. Results 96 of 98 patients were successfully treated with gravel, the success rate was 98% (96/98). The average operation time of 96 patients was 30 min (22-58 min) and the average length of stay was 4.5 d (2-7 d ). Conclusions Ureteroscopic holmium laser lithotripsy has the advantages of less trauma, quicker recovery and less complications, which is a safe and effective method for the treatment of middle and lower ureteral calculi.