The world’s largest kidney stone was removed from a 62-year-old retired soldier by Sri Lankan military physicians, the army announced on Wednesday.
According to the army, the stone that was removed from the ex-sergeant, Canistus Coonge, was 801 grams (28.25 ounces), which is more than five times the weight of a typical male kidney.
The average kidney is between 10 and 12 centimeters long, but Coonge’s kidney stone was 13.37 centimeters (5.26 inches) long.
“The removal of the world’s largest and heaviest kidney stone through a major surgery occurred on June 1 at the Colombo Army Hospital,” the military said in a statement.
Coonge told the local Swarnavahini TV that he had abdominal pain since 2020 and oral medication had not helped.
“I was told to undergo surgery after a recent scan,” he said. “I feel normal now.”
The Sri Lankan case surpassed the largest kidney deposit previously recorded of 620 grams from a patient in Pakistan in 2008, according to Guinness World Records.
