Right kidney hypodense shadow usually refers to possible right kidney cyst, right kidney hydrocele and other diseases, once found need to seek medical treatment in time. When cysts or hydronephrosis occurs in the kidney, low-density shadow may appear, you can improve the urological CT and other tests for clear diagnosis and determine the follow-up treatment plan. If the right kidney low density shadow is a renal cyst. Renal cysts are generally small in size and do not require special treatment, but if they exceed >5cm, cystocentesis can be considered for treatment. If there is infection, bleeding, calcification or cloudy cystic fluid in the cyst, it is important to be alert to the risk of cystic renal carcinoma. If the hypodense shadow of the right kidney is right hydronephrosis, the cause of the disease should be clarified, and according to the cause of the disease and the degree of hydronephrosis, treatment methods such as anti-infection, lithotripsy and surgical intervention should be chosen. There may be other reasons for hypodense right kidney shadow, so patients are advised to go to regular hospitals for timely consultation, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.