Kidney stones are made up of chemical crystals that separate out from urine. These crystals clump together to make stones. They form in the calyx of the kidney. They may stay in the kidney or move into the urinary tract. Kidneys form stones for many reasons. If you don’t drink enough water, for instance, you won’t have enough urine to dilute chemicals. Then the chemicals may form crystals, which can develop into stones. Other reasons kidney stones may form include dehydration, certain foods, kidney infections and family history.
Symptoms include sudden and severe pain and bloody urine. Kidney stones can also cause nausea or frequent, burning urination. Fever may indicate a serious infection. Call your health care provider right away if you develop a fever with these symptoms.
Treatment options include surgical removal and using shock waves to break the stone into small pieces that pass more easily. In some cases your health care provider may prescribe medications to dissolve or prevent stones or to stop an infection. Click here to learn more about treatment options for kidney stones.
Prevention is the most important treatment for kidney stones. Prevention is especially important if you've had kidney stones in the past, as this makes you likely to form another. Getting plenty of fluids, eating less protein (if applicable), limiting salt and other dietary changes can help prevent kidney stones.