Abstract:【Objective】 To evaluate the efficacy of retrograde or anterograde balloon dilatation for the treatment of ureteral strictures. 【Methods】 Between June 2012 and June 2013, retrograde or anterograde balloon dilatation was performed in 24 consecutive patients with ureteral strictures. Of 24 patients,thirteen had ureteral stricture on the left side and 11 on the right side. The diagnosis was established by renal ultrasonography, diuretic renal scan, intravenous urography (IVU) or/and computed tomography urography (CTU), retrograde urography imaging. Of 24 patients, thirteen ureteral strictures occurred secondary to PCNL or ureteroscopy lithotripsy, six secondary to laparooscopic ureterolithotomy, four secondary to ureteral end to end anastomosis and one secondary to bladder ureter reimplantation. With the follow-up of 3~12 months, ultrasonography, diuretic renal scan and IVU were routinely performed. 【Results】 Retrograde catheter insertion was completed successful in 23 cases and retrograde balloon dilatation was performed in these patients. Retrograde catheter insertion was fail in one case and percutaneous renal puncture and anterograde balloon dilatation was performed. The mean operative time of 24 cases was 45 (range 30 to 80) min. The mean hospital stay was 3 (range 2~4) d. The DJ stent was removed in 3 months postoperatively. Of 24 patients, thirteen showed curative, nine showed improved and two showed invalid. 【Conclusion】 Retrograde or anterograde balloon dilatation for ureteral strictures could be a safe, effective and minimally invasive procedure.