Ouch: each year, more than 500,000 Americans seek care for kidney stones. Here's the story of one man's second—and how he's ...

Renal colic is mainly experienced when a ureter is obstructed. As a kidney stone passes into this narrow tube, it can become stuck, triggering powerful spasms lasting 15 to 45 minutes. Once the ...

For kidney stones that have lodged in the ureters, a ureteroscope may be used. No incision is made in this procedure. Instead, the surgeon passes a small fiberoptic instrument through the urethra and ...