Kidney Stones Home > Information on Kidney Stones

A common -- and potentially very painful -- condition, kidney stones are solid pieces of material that form in the kidney out of crystals in the urine. Normally, the crystals in the urine remain tiny enough to travel through the urinary tract and out of the body in the urine without being noticed. In some people, however, the crystals stick together and continue to build up to form kidney stones.
In many cases, kidney stones do not cause any symptoms. When symptoms do occur, they may include things like:
  • Sharp, cramping pain in the back, side, or groin
  • Nausea
  • Blood in urine (urine will appear pink)
  • Frequent urination or urge to urinate.
In order to make a diagnosis of kidney stones, your healthcare provider will need information on your symptoms and medical history, including your eating habits. In addition, you will likely need to take certain laboratory tests that will look at your urine and blood.
(For more details, click Kidney Stones. This article offers a complete overview of this condition, with information on treatment options, other names for the condition, and more.)
Written by/reviewed by:
Last reviewed by: Arthur Schoenstadt, MD
Last updated/reviewed:
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