THE LASER WILL BLOW THEM UP AND THE DOCTOR WILL REMOVE THE FRAGMENTS. NO STONES TO KEEP. : ( BUT HERE IS ONE THAT I PASSED AT THE "UROLOGIST" AS I WAS GIVING A URINE SAMPLE BACK IN 2020. OUCH! THAT'S MY MOUSE NEXT TO IT FOR COMPARISON. THEY ARE GOING TO REMOVE 2 BIGGER THAN THAT ONE TODAY. WAYNE