Urinary cysts can be reviewed regularly in mild cases, while patients with severe cases should undergo timely surgical treatment. 1. Urinary cysts in mild cases may have no obvious symptoms, no obvious pressure on the tissues around the kidneys, and have no effect on urination, etc. Conservative treatment can be considered as the mainstay, and regular rechecks are recommended. 2. For patients with severe urocystic cysts, with obvious enlargement of lumbar mass, lumbar pain or accompanied by mass, the main treatment measure is continuous drainage by percutaneous catheterization under ultrasound guidance. The puncture method is that the patient takes the prone position, lumbar back ultrasound localization, to the skin nearest to the cyst low as the puncture point, after local anesthesia, cut the skin 0.5 ~ 1 cm, the F10 renal puncture needle in the ultrasound guided puncture of the capsule 2 ~ 5 cm, pull out the core of the needle, see the urine outflow. Pediatric silicone gastric tube with pre-cut side holes was inserted into the trocar as far as possible to the opposite side of the cyst, and 1 needle of silicone tube was fixed by skin wire after pulling out the trocar, aseptically bandaged, and the catheter was connected to the drainage bag. Urinary cyst patients who find obvious symptoms, should go to the regular hospital for regular treatment.