Hi, In my recent sonography(2nd may 2019), 6.1mm stone has been detected in lower ureter. From last 5 days i am having constant pain in the lower back and lower left side on the front. I have been taking cystone tab and lot of water since then. Is it possible that the above stone will pass on its own, or surgery is the only option I am able to urinate sufficient quantity without any burning sensation, however i sometimes see bit of blood in urine. Can someone please advice what can be the course of action?