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Kidney Stones

Kidney stones are hard mineral and salt deposits that form in the kidneys. They can vary in size and may pass through the urinary tract. While some individuals may not experience symptoms, others might encounter discomfort during the passage of stones.

Kidneys & Renal
  • What causes kidney stones to form?
    MedlinePlusMay 2026

    Kidney stones form when certain substances in your urine build up and harden into solid pieces. These substances can include calcium, oxalate, and uric acid, and they clump together to create stones that can be as small as a grain of sand or as large as a pearl.

  • Can I prevent getting more kidney stones in the future?
    MedlinePlusMay 2026

    You can help prevent future kidney stones by drinking plenty of water, limiting salt and certain foods high in oxalate, and maintaining a healthy diet. Your doctor can give you specific advice based on what type of stone you had.

  • How do kidney stones affect my body if they don't pass on their own?
    MedlinePlusMay 2026

    If a stone gets stuck in your urinary tract, it can block urine flow and cause extreme pain in your back or side, along with blood in your urine, nausea, and vomiting. Without treatment, a blocked stone can lead to serious complications like infection or kidney damage.

  • Are there different types of kidney stones? What type do I have?
    MedlinePlusMay 2026

    There are several types of kidney stones, including calcium, uric acid, and struvite stones. Your doctor can determine your stone type through blood and urine tests, which helps guide prevention and treatment.

  • Why does having kidney stones cause so much pain?
    MedlinePlusMay 2026

    Kidney stones cause pain because they can get stuck in the narrow tubes that carry urine from your kidneys, blocking the flow and creating pressure and irritation. This blockage is what causes the extreme pain in your back or side.