This study describes a technique that facilitates the identification of the ureter during radical excision of endometriosis. After dissection of the ureter, a biocompatible silicone sling is introduced into the pelvis through the trocar; the sling is applied around the ureter and the two ends of the sling are pulled until adequate traction on the ureter is obtained. Ureteral suspension was performed in 126 consecutive women with endometriotic lesions involving the ovarian fossa and/or the uterosacral ligaments. This surgical technique facilitated the identification of the ureter, preventing injuries.