Whether kidney stones are difficult to be discharged or not needs to be analyzed according to the patient’s own condition. It is based on the specific location and size of the kidney stone, as well as the severity of urinary tract obstruction, to determine whether the kidney stone can be easily discharged, so stone discharge varies from person to person. If the stone is small, smooth and without obstruction, it may be easier to discharge. You can take oral medications such as urinary stone granules and stone removal granules to expel small stones. You should also drink more water, exercise more, and eat less spicy and stimulating food. If the kidney stones are large or rough around the kidney stones, it may be difficult to expel the stones if the patient has ureteral obstructive disease. For such patients, extracorporeal shock wave lithotripsy or surgery is required to remove the stones. It is recommended not to eat foods rich in calcium oxalate, such as celery and spinach, to prevent the recurrence of stones.