Hematuria after operation is mostly mucosal injury, so you can drink plenty of water and stop it automatically in 1-3 days. If hematuria is serious, you can use hemostatic drugs and add more fluids.
Stinging is caused by ureteredema, blood clots or stone fragments that irritate the ureter. Give spasmolytic and analgesic treatment, which can be relieved in a short time. If it can't be relieved, pay attention to whether there is urinary tract obstruction.