Ureteral stones leading to hydronephrosis can usually be recovered, which needs to be broken down first and then treated accordingly under the guidance of doctors. Ureteral stones will lead to obstruction in the ureter, so that the patient’s kidneys will be blocked from discharging urine, resulting in the accumulation of urine in the kidneys, which will lead to the phenomenon of hydronephrosis. Ureteral stones are usually caused by metabolic abnormalities, urethral stenosis, urinary tract infections, etc. They may cause symptoms such as frequent urination, urgency, and painful urination, and can be treated with surgical procedures such as ureteroscopic lithotripsy and ureteral osteotomy and lithotripsy under the guidance of a doctor. Hydronephrosis is usually caused by stones, ureteral stenosis and other factors, and may have symptoms such as abdominal mass, which can be treated under the guidance of the doctor, and the kidney can be removed if the kidney is not functional. If ureteral stone or hydronephrosis occurs, you should go to the hospital in time to avoid adverse consequences.