Right kidney cyst may be related to bacterial infection, genetic mutation and taking nephrotoxic drugs, etc. Kidney stones may be related to urinary tract obstruction and metabolic abnormalities. 1. Right kidney cyst: (1) Bacterial infection: when the right kidney area is attacked by bacteria, it may cause inflammatory disease, and after the right kidney cells are stimulated by inflammation for a long period of time, abnormal proliferation may occur, leading to right kidney cyst with stones. (2) Genetic mutation: patients may suffer from hereditary right renal cyst after genetic mutation. (3) Taking nephrotoxic drugs: Taking nephrotoxic drugs for a long time, such as the chemotherapy drug cisplatin, will cause irritation to the kidneys, which can also cause right kidney cyst. 2.Kidney stones: (1) Urinary tract obstruction: after being affected by age and congenital factors, it may cause urinary tract obstruction. When the obstruction is more serious, it may cause dilatation of the renal pelvis and ureter, and after being stimulated by the above diseases, kidney stones may appear. (2) Abnormal metabolism: abnormal metabolism in the patient’s body will lead to the accumulation of calcium and uric acid in the kidneys. These substances will also cause irritation to the mucous membrane of the kidneys, causing kidney stones. Right kidney cysts and kidney stones may also be caused by other reasons, so patients are advised to go to the hospital for examination in time and choose appropriate methods for treatment.