What are kidney stones? How do they form?

Kidney stones consist of buildup in the kidneys as a result of deposited minerals and salts that are present in urine. They can build up in the urinary tracts, and over time this can create kidney stones.

Kidney stones form when your urine contains more crystal-forming substances such as calcium, oxalate and uric acid than the fluid in your urine can dilute.

Explanation:

At the same time, your urine may lack substances that prevent crystals from sticking together, creating an ideal environment for kidney stones to form.

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