The treatment of ureteral dilatation needs to be symptomatic according to the cause of the disease, and common treatment methods include surgery, medication, etc. The specific treatment method should be determined by the doctor according to the patient’s specific condition, physical condition, etc. Ureteral dilatation can be divided into two categories: congenital and acquired ureteral dilatation. Ureteral dilatation can be divided into two categories: congenital and acquired ureteral dilatation, congenital due to developmental disorders, such as megaureter, fetal ethanol syndrome, etc., and acquired ureteral dilatation due to obstruction of various parts of the urethra. For the dilatation caused by giant ureter, if the degree of ureteral dilatation is mild and the hydronephrosis is not obvious, the patient can be followed up and observed, and no special treatment is needed for the time being. If the patients with severe renal impairment and hydronephrosis should undergo nephrectomy and ureterectomy, for patients with infection, nephrostomy drainage is required, and nephrectomy and ureterectomy should be performed after the infection and inflammation subside. For ureteral dilatation caused by ureteritis, patients should pay attention to rest, drink more water to alkalize the urine, and choose appropriate antibiotics for treatment, commonly used drugs are amoxicillin, cefuroxime, ofloxacin, amikacin and so on. In summary, patients with ureteral dilatation should identify the cause of the disease, actively cooperate with the doctor’s treatment, and use drugs under the guidance of the doctor.