How Long Does It Take To Pass A Kidney Stone?

Kidney stones are defined as formation of crystals through the minerals found in urine. Usually, smaller crystals get passed through urine but when these smaller crystals join together, they form a bigger kidney stone. The bigger kidney stones are problematic and may have severe health repercussions. No treatment is necessary for passing smaller kidney stones but the larger kidney stones may get stuck in the urinary tract. The stones may obstruct the passing of urine and this leads to severe pain.

Time to Pass a Kidney Stone

Duration of kidney stone passing depends on the size. According to medical journals, almost 9 out of 10 kidney stones measuring up to 5mm and 5 out of 10 kidney stones measuring 5mm – 10mm pass on their own. From the time of appearance of kidney stone symptoms, the stones usually pass within 4 weeks. In some cases, it takes only 1 to 3 weeks or even just a few days.

Once kidney stones begin to appear, they may recur unless preventive measures are taken. The frequency of the stones’ appearance varies with individual and with each recurrence the time between the reappearance of each kidney stone reduces considerably.

Larger stones often require medical intervention for removal. Kidney stones more than 6mm in size are first identified through CAT scan or ultrasound. Once the size and position of the stones are confirmed, the doctor recommends the appropriate procedure for removal such as shock wave treatment, abdomen incision, and keyhole surgery.