The American Association of Endocrine Surgeons, Patient Education Site

Signs and symptoms of
parathyroid disease

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Kidney Stones

Kidney stones are stones that form in the kidneys. Although there are many types of kidney stones, calcium makes up one of the most common types of kidney stones. When blood calcium levels are high, it can combine with other chemicals in the body to form stones in the kidneys. Typically these stones pass through the ureters (the tubes that carry urine from the kidneys to the bladder) into the bladder. People will then "pass" or urinate out the stones, which can be very painful. Sometimes the stones will get stuck along the way and may require an operation to remove them. Kidney stones can cause pain, blood in the urine, urinary tract infections, blockage of the ureter, and even kidney damage. Of all patients who present with kidney stones only 3 to 8% will have primary hyperparathyroidism. Surgery for primary hyperparathyroidism decreases the frequency of developing new kidney stones among those patients with kidney stones and primary hyperparathyroidism. 2 Only about 7 to 15% of people who have primary hyperparathyroidism have kidney stones. 2, 3


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