question: I had stone in my right kidney and had a laser surgery through my penis. However, the doctor told me that out of 7.mm he could take out 2.5mm fragrance out and the rest approx 5mm is still in your kidney and because my urine pipe is so small he could only have 1 chance to enter. However, he has put JJ Stent in my body and advices for drinking 3-4 liter water per day. I m worried if the stone gets out throughout urine or how. Please advice.