The ultrasound manifestation of kidney stones is normal size and shape of both kidneys with homogeneous renal parenchymal echogenicity. There is no sign of fluid accumulation in the renal collecting system, and one or several strong echogenic light spots are visible in the renal pelvis with posterior acoustic shadow. There is no obvious dilatation of the ureter with kidney stones, and all urine is normal. If acute ureteral stones can be accompanied by bilateral hydronephrosis, ureteral dilatation, and signs of bladder irritation. This condition requires the patient to further hold urine and perform a vesicoureteral examination. Acute kidney stone attack can be accompanied by an increase in the size of both kidneys, hydronephrosis in the renal collecting system, a small amount of perinephric fluid, and symptoms such as abdominal pain and frequent and urgent urination.