How Long Can Kidney Stones Take To Pass. Sometimes a stone can form more quickly in a few months. But let s be clear.
Now the pain is not nearly as bad as when the kidney stone detaches from the kidney. Kidney stones can be tiny moving through the kidneys ureter bladder and urethra without the patient even noticing 1. They can cause pain and discomfort.
Kidney stones can range in size considerably.
Size stones smaller than 4 millimeters mm pass on their own 80 percent of the time. These can take anywhere from a few days to a few weeks to pass depending on how big they are some in fact may be too big to pass on your own and require medical intervention. A kidney stone may pass in several hours or it may take as long as a few weeks. One or two out of 10 kidney stones need a doctor s intervention to pass 1.