Conclusion:
Urologists perform the endourological intervention in delayed diagnosed IUI treatment due to short operative time hospital stay, fewer complication, and low treatment cost. The perioperative recognition rate and endourological intervention treatment success rates of thermal IUI are limited. The possibility of thermal damage should be kept in mind in complications such as urinary leakage and hydronephrosis due to ureteral stricture, which occurs in the late period during postoperative follow-up. If IUI develops in the presence or suspicion of thermal damage, excising the traumatic segment and ensuring ureter continuity (such as ureteroureterostomy, ureteral reimplantation) increases the success of surgical treatment, regardless of the level of ureteral damage.