Ureteroscopy is generally used for lithotripsy, and the stent after operation is to open the ureter to prevent ureter adhesion and healing from being obstructed, further causing stenosis and hydronephrosis. The second is to promote the discharge of sand and gravel. As long as you pay attention to drinking more water and less exercise after operation, you can take some anti-inflammatory drugs for hematuria, pain, frequent urination and urgency.