What Are Kidney Stones?
Kidney stones happen when minerals form crystals inside the kidneys. Then they get bigger and become kidney stones. Kidney stones can move into the urinary tract. There, they can cause problems like pain and blood in the urine (pee). Some stones also can block the flow of pee.
Most kidney stones pass out of the body without causing any damage. Pain medicine and plenty of fluids help most people with kidney stones get better.
What Are the Signs & Symptoms of Kidney Stones?
Usually, kidney stones don't cause symptoms until they move around in the kidney or pass into the ureter (the muscular tube that connects the kidney to the bladder). Small stones can pass out of the body with little or no pain.