RESUMEN
Objective To evaluate the methods for treatment of paediatric stone disease in middle and lower ureter with fascia dilator and ureteroscopic holmium laser. Methods For 35 child patients with middle and lower ureteral calculi, the dilation of orifice was taken by 6.0 ～ 8.0 F fascia dilator, then ureteroscopic holmium laser lithotripsy followed. Results Among the 35 cases, 33 cases were the successful gravel, with a total rate of 94.3％ gravel. In other two cases, the broken stones were rushed into the renal pelvis and ESWL was successfully carried. Conclusion Fascia dilator and ureteroscopic holmium laser in paediatric middle and lower ureteral calculi can improve the successful rate of operation and reduce the operation risks. It is safe and effective.