Ureteral swelling and pain after double-j tube placement is normal in most cases. After double j tube placement, is a foreign body stimulation, may stimulate the ureter caused by swelling and pain and other symptoms, some may also appear frequent urination, urinary urgency, hematuria, lumbago and other symptoms. If the swelling and pain is not obvious and does not affect normal life, there are no other complications, generally do not need special treatment. Usually need to pay attention to increase the amount of water, and properly handle the catheter, avoid local extrusion, keep the drainage smooth, avoid strenuous exercise and sudden squatting and other actions, to prevent the movement of the double J tube and fall off. If there is severe swelling and pain, hematuria, fever and other symptoms, you should promptly seek medical attention to check whether there are secondary infections and other complications.