Right kidney cyst is a cystic disease occurring in the right kidney, which is a common benign, cystic, and occupying lesion of the right kidney, mainly manifested as one or more cystic masses in the right kidney tissue with liquid or semi-solid fragments inside the masses. Whether the right kidney cyst needs to be treated or not, it needs to be decided according to the type of cyst as well as its size and symptoms, etc. The specific analysis is as follows: 1. Simple kidney cyst: the disease progresses slowly, does not affect normal kidney function, and when the number of cysts is small, the volume is small and is not accompanied by other abnormal symptoms, no special treatment can be done and regular review can be done. When the volume of cysts is ≥5cm and there are obvious discomfort symptoms such as lumbar pain, laparoscopic renal cyst windowing is needed; 2. Polycystic kidney: patients often have family history, it is a hereditary disease, and it mostly develops at the age of 35-45. Patients are often found when they seek medical examination after self-conscious back pain, which can have complications such as urinary tract infection, hypertension, heart failure, etc. A few of them have the possibility of malignant transformation. Polycystic kidney needs to be treated in time, and cyst opening and decompression can be performed to reduce renal compression, and in case of chronic renal insufficiency and uremia, hemodialysis or kidney transplantation is needed; 3. Acquired renal cyst: often secondary to uremia or dialysis treatment, in addition to treating the original disease, cyst puncture and fluid aspiration and nephrectomy can be performed. In addition, there is another kind of right kidney cyst often found in fetal period, namely polycystic kidney dysplasia, which is a hereditary disease with no effective treatment, and the affected kidney will eventually lose its function.