The two most common causes of kidney pain are kidney infections and kidney stones—both of which cause acute renal injury. An acute renal injury happens when your kidneys become injured suddenly.

Kidney stones are pebble-sized deposits that form when there’s too much salt and minerals in your urine. Learn whether men or women are more at risk, what passing one feels like, and how big ...

Stents may also relieve acute pain from a stone, enable any infection to drain, and allow antibiotic treatment before surgery. Shock wave lithotripsy (SWL) is a procedure that uses ultrasound energy ...