Colombo: Military doctors in Sri Lanka have successfully removed the world's largest recorded kidney stone from a 62-year-old retired soldier, according to an announcement by the army on Wednesday.

The kidney stone extracted from former sergeant Canistus Coonge weighed an astonishing 801 grams (28.25 ounces), more than five times the average weight of a male kidney.

Measuring 13.37 centimeters (5.26 inches) in length, Coonge's kidney stone surpassed the typical size of a kidney, which is about 10 to 12 centimeters long.

The major surgery to remove the world's largest and heaviest kidney stone took place on June 1 at the Colombo Army Hospital, as stated in the military's official statement.

Coonge, speaking to local Swarnavahini TV, revealed that he had been experiencing abdominal pain since 2020, and oral medication had provided no relief. After a recent scan, he was advised to undergo surgery, and he now feels normal following the procedure.

The Sri Lankan case exceeded the previous record for the largest kidney stone, which weighed 620 grams and was removed from a patient in Pakistan in 2008, as recognized by Guinness World Records.

Highlighting the positive outcome, army surgeon K. Sutharshan emphasized that despite the enormous stone, the kidney is functioning normally.

Kidney stones are formed when minerals and salts crystallize in the kidney during the blood filtration process. If stones are too large and become trapped, they can cause severe pain and may require surgical intervention to be removed.