Are shock waves used to break up kidney stones that are already in the bladder? I am confused by what the doctor is saying. She showed me the two stones in the bladder on the x-ray, but she has scheduled me for shock wave surgery to break the stones up, but all of the info I am reading is that the stones are broken up in the kidney. They are going to place a stent in me, but what for if the stones are already in the bladder?