Size Of Kidney Stones You Can Pass. Time needed for passing kidney stones. The size of kidney stones determine the time needed for their removal from the kidneys.
16 years experience urology. You can have kidney stones and not have any symptoms. Smaller the size of a stone the faster it can pass through the urinary tract.
Many of these stones are so small that they are able to travel to the bladder in just a few days or weeks and can easily pass through urine.
Stones smaller than 4 millimeters mm pass on their own 80 percent of the time. They take an average of 31 days to pass. Kidney stones are small usually between the size of a kernel of corn and a grain of salt. However many 6mm stones do not pass on their own.