For kidney stone examination, it is necessary to conduct an ultrasonography of the urinary system. Patients can go to the urology department of their local hospital for a formal examination. The ultrasound of the urinary system primarily looks at the size of the kidney stones and whether there is any water accumulation in the kidneys. Based on the results of the examination, an appropriate treatment plan can be formulated. For example, smaller kidney stones can be treated with extracorporeal shock wave lithotripsy, while larger kidney stones may require minimally invasive surgery.