On 1 June 2023, surgeons at the Colombo Army Hospital in Sri Lanka removed a kidney stone measuring 13.372 cm long and weighing 801 g from 62-year-old retired soldier Canistus Coonge. Guinness World Records certified it as both the largest and heaviest kidney stone ever removed, beating a 620 g stone removed in Pakistan in 2008.
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On 1 June 2023, surgeons at the Colombo Army Hospital in Sri Lanka removed a kidney stone measuring 13.372 cm long and weighing 801 g from 62-year-old retired soldier Canistus Coonge. Guinness World Records certified it as both the largest and heaviest kidney stone ever removed, beating a 620 g stone removed in Pakistan in 2008.
The greatest mass of a single renal calculus surgically removed from a living patient, as verified by Guinness World Records.
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Limits Registry. LR-LARGEST-KIDNEY-STONE-REMOVED. Largest and heaviest kidney stone ever removed from a human. 2026.