The stones are small crystals, that are made up of waste products in the blood.
They collect in the kidneys, and are passed out in urine.
Kidney stones are on the rise – especially in women, scientists have warned.
Kidney stones: Cases are increasing, scientists warn
Kidney stones pain: How to prevent condition as cases rise
“Symptomatic kidney stones are becoming more common both men and women,” said lead investigator on the Mayo Clinic study, Dr Andrew Rule.
“This is due in part to the increased use of CT scans to diagnose kidney stones.
“We are now diagnosing symptomatic kidney stones that previously would have gone undiagnosed because they would not have been detected.”
The scientists compared the number of kidney stone diagnoses between 1984 and 2012 in Minnesota, USA.
Kidney stones: The stones are formed from waste products in the blood
Kidney stones: Lower back pain could be a sign of stones
Women had a greater rise in diagnoses than men, the scientists revealed.
The highest rise was seen in women between 18 and 39 years old.
After a kidney stone has formed, the body will try to pass it out in urine.
Small stones go undetected, and are passed out painlessly. But, some stones block part of the urinary system, and can cause severe pain in the abdomen or groin.
Kidney stones: The stones can be passed out in urine
Kidney stones: Drinking plenty of water could lower your risk of stones
Kidney stones are more likely to develop if you don’t drink enough fluids, according to the NHS.
Keeping urine diluted and clear will prevent waste products forming into kidney stones, it said.
Changing your diet could help to prevent kidney stones developing. Avoid foods that contains oxalates, as they prevent calcium being absorbed by the body, and accumulate in the kidney to form stones.
Foods that contain oxalates include beetroot, rhubarb, chocolate, leeks, celery, grains and soy products.