Because the site of cervical cancer is very close to the end of ureter, radical resection of cervical cancer often damages the lower part of ureter, resulting in narrowing of the lower ureter and causing hydronephrosis, and some patients have already developed kidney atrophy or even renal insufficiency when they are seen for a long time without attention to hydronephrosis. Radiotherapy can lead to ureteral fibrosis, at which time ureteral stenosis cannot be reversed and can only be supported by long-term indwelling stents. This patient is a post-operative cervical cancer patient with bilateral ureteral stenosis after radiotherapy. This resulted in renal insufficiency. I left a metal ureteral stent in place for her. This type of stent can be retained in the patient for a long time. It reduces the patient’s distress of frequent stent replacement.