Complications of a flexible URS

Flexible ureterorenoscopy (URS) is the surgery of choice in the treatment of patients with nephrolithiasis. Currently, this technique is successfully used in the treatment of patients with stones not only less than 2 cm, but also in some cases more than 2 cm, with any localization in the kidney with a high frequency of complete stone removal, significantly reducing the time spent in the hospital. However, despite the high manufacturability and safety, flexible URS has its possible complications, which are considered in this literature review.