A kidney stone is a hard object, which can be as small as a grain of salt or as big as a golf ball, made from chemicals—calcium oxalate, uric acid, struvite, and cystine—found in our urine.

And contrary to popular belief, it's not just the big stones that hurt. “Any stone of any size that blocks the ability of the kidney to drain can cause severe pain," he explains.

Coonghe’s kidney stone weighed in at 1.76 pounds – about the same weight as five baseballs. Previously, the record was 1.36 pounds, set in 2008 by Wazir Muhammad in Pakistan.

Kidney stones are hard deposits made of minerals and salts that form inside your kidneys, the Mayo Clinic says. The stones can be painful to pass but aren't likely to cause major issues if caught ...

The world’s largest kidney stone has been removed from a patient in Sri Lanka – and it’s about the size of a grapefuit, as long as a banana and as heavy as four hamsters.

The number of annual kidney stone cases increased by 16% from 1997 to 2012, with the greatest increase in 15- to 19-year-olds.

Kidney stones are generally common in adults, and about 11% of men and 6% of women in the United States have them at least once during their lifetime, according to the National Institutes of Health.

Kidney stones aren't common in children, but more kids are experiencing them. Here's what doctors say is behind the rise in cases, plus what you can do to fight the condition.

Pediatric urologist Gregory E. Tasian shows patients a model of a kidney with kidney stones at Children’s Hospital of Philadelphia in King of Prussia, Pennsylvania. (Rachel Wisniewski for The ...

Kidney stone occurs when small solid substances accumulate in the kidney, which are usually made of minerals and salts. These include elements like calcium, oxalate, uric acid, and phosphate.