Most kidney stones eventually pass from the kidney through the ureter and bladder and finally through the urethra on their own. However, treatment is often required for pain control from kidney stones as they pass.

How do you know when a kidney stone is about to pass?

They feel pain in their abdomen, lower back or groin as the stone passes through the narrow ureter and beyond. That can also cause some gastric discomfort, which is centered in the upper abdomen and can be dull and achy or throbbing pain.

What part of the body do kidney stones pass through?

Ureters: After your kidney creates urine, the liquid travels through the tube-shaped ureter to the bladder. There is one ureter per kidney. Kidney stones can pass through the ureters or, if they're too big, get stuck in them. You may require surgery if the stone is too large.