Patient: Description of the condition (onset, main symptoms, hospital visited, etc.): My mother had a full course of carnal hematuria in September this year, and was diagnosed with left renal pelvis occupancy. left kidney removal was performed on October 8, and part of the ureter and part of the bladder wall of the shutter was removed, and the postoperative pathology was uroepithelial carcinoma of the left renal pelvis, and no carcinoma was seen in the ureter and bladder wall of the shutter. He was discharged from hospital for 4 weeks in good condition and started bladder instillation of piroplasin from the third week, three at a time with one hour retention, and today is the seventh instillation. From the fifth time onwards, there are symptoms of frequent and painful urination, no other symptoms, taking antibiotics is ineffective, what should I do now, how many more instillations are needed, and whether I need to change the medication. According to the current situation, the treatment can be stopped. In fact, the chance of bladder cancer occurring in renal pelvic cancer is not very high, and there are also chemotherapy without bladder irrigation.