Can kidney stones be discharged in the renal calyx?

If the patient has a small stone in the upper or

middle part of the renal calyx, it can be

removed in time with plenty of water and exercise. However, if the patient has a large stone in the lower part of the renal calyx, it may cause abnormal obstruction of the ureter, which may cause acute abdominal pain and obstruction of the upper urinary tract. However, the patient can be removed by extracorporeal ultrasound lithotripsy or percutaneous nephrolithotomy at the doctor's suggestion.