The location of ureteral stones can be determined by urinary system ultrasound, abdominal X-ray, abdominal CT and other examinations. 1. Ultrasound of the urinary system: it is generally the first choice of examination for ureteral stones, which can detect stones over 5mm, show the hyperechoicity of the stone as well as the posterior acoustic shadows, which can understand the distribution of the stone, its size, and also show the hydronephrosis and renal parenchyma atrophy caused by stone obstruction. 2. Abdominal X-ray: it is the basic method to diagnose ureteral stones, which can roughly determine the location, shape, size and number of stones, and also can initially determine the chemical nature of stones through the brightness of the stone shadow. 3. Abdominal CT: CT can accurately estimate the volume of stones, initially determine the composition of stones, but also show the dilatation of the ureter, edema. It is recommended that patients under the advice of a professional doctor to carry out the relevant tests, the doctor may be based on the patient’s own situation to carry out other tests to clarify the diagnosis, relax and actively cooperate with the doctor’s treatment.