Kidney cysts are not medically serious diseases if they are isolated cases. Generally, cysts less than 4 centimeters and without symptoms can be treated without treatment and can be reviewed regularly. If the cyst is getting bigger and bigger and the examination reveals that it is more than 5 centimeters, it needs to be treated by puncture, injection of sclerosing agent or surgery, and after the surgery, it also needs to be reviewed regularly in the hospital. In case of recurrence, early intervention is needed to avoid more serious diseases. If the situation is serious there is a possibility of spontaneous rupture of the kidney cyst, a mass in the abdomen, proteinuria, hematuria, hypertension, and renal hypofunction, which require further diagnosis and active treatment. If smaller simple kidney cysts are found during physical examination, it is recommended that annual physical examination and monitoring is sufficient; if the ultrasound report is complex kidney cysts, it is recommended that imaging examinations such as enhanced CT, MRI and ultrasonography be performed for further auxiliary identification and rating before deciding whether surgical treatment is needed.