CHICAGO — Doctors are puzzling over what seems to be an increase in the number of children withkidney stones, a condition some blame on kids' love of cheeseburgers, fries and other salty foods.

Kidney stones are usually an adult malady, one that is notorious for causing excruciating pain _ pain worse than childbirth. But while the number of affected children isn't huge, kids with kidney stones have been turning up in rising numbers at hospitals around the country.
At Children's Hospital of Philadelphia, the number of children treated for kidney stones since 2005 has climbed from about 10 a year to five patients a week now, said Dr. Pasquale Casale.
Johns Hopkins Children Center in Baltimore, a referral center for children with stones, used to treat one or two youngsters a year 15 or so years ago. Now it gets calls about new cases every week, said kidney specialist Dr. Alicia Neu.
In a 2007 study in the Journal of Urology, doctors at North Shore-Long Island Jewish Medical Center reported a nearly fivefold increase in children brought in with kidney stones between 1994 and 2005. In 2005, 61 youngsters were treated there for stones. More...