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    Kidney Stone
    Kidney stone (magnified)

    Kidney stones are made of salts and minerals in the urine that stick together to form small "pebbles." They may form when the normal balance of water, salts, minerals, and other substances found in urine changes. How this balance changes determines the type of kidney stone you have. Most kidney stones are calcium-type-they form when the calcium levels in your urine change.

    ByHealthwise Staff
    Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
    Specialist Medical Reviewer Tushar J. Vachharajani, MD, FASN, FACP - Nephrology

    Current as ofNovember 14, 2014

    Current as of: November 14, 2014

    Author: Healthwise Staff

    Medical Review: E. Gregory Thompson, MD - Internal Medicine & Tushar J. Vachharajani, MD, FASN, FACP - Nephrology

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