MedlinePlus Medical Encyclopedia: Nephrolithiasis

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Nephrolithiasis

Kidney stones result when urine becomes too concentrated and substances in the urine crystalize to form stones. Symptoms arise when the stones begin to move down the ureter causing intense pain. Kidney stones may form in the pelvis or calyces of the kidney or in the ureter.

Update Date: 8/14/2007

Updated by: Charles Silberbreg, DO, Private Practice specializing in Nephrology, Affiliated with NY Medical College, Division of Nephrology, Valhalla, NY. Review provided by VeriMed Healthcare Network.

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