How long does it take to pass a kidney stone?

How long does it take to pass a kidney stone?

The amount of time it can take for you to pass a kidney stone is different from another’s. A stone that’s smaller than 4 mm (millimeters) may pass within one to two weeks. A stone that’s larger than 4 mm could take about two to three weeks to completely pass.

Once the stone reaches the bladder, it typically passes within a few days, but may take longer, especially in an older man with a large prostate. However, pain may subside even if the stone is still in the ureter, so it’s important to follow up with your healthcare provider if you don’t pass the stone within four to six weeks.