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Kidney stones are mineral rich solids formed from chemicals such as salts and calcium in the urine (which when it crystallizes becomes salt calcium oxalate).They can occur in any urine collecting part of the kidney e.g. the renal Elvis or the calyx. Stones can grow in various shapes and sizes, and can take years to form. They can remain in the kidney and cause few problems but they can increase the risk of urinary tract infections. They can be extremely painful.

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13y ago

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