Doctors remove 3.1kg stone from man's bladder and claim record

What the report says

Doctors in Sri Lanka removed a 3.1-kilogram bladder stone from a 55-year-old man during surgery at a hospital in Trincomalee, in the country’s east, according to the report attributed to the BBC and republished by Nile Post. The patient had originally been admitted after a stroke, and doctors later discovered stones in his urinary bladder when he began having trouble urinating.

The surgical team said the stone may be the largest bladder stone ever documented and removed in an operation. The report quotes the lead surgeon as saying, based on available records, it appears to be a record-sized case. The stone was described as roughly 17 centimeters long, about the size of an ostrich egg, and comparable in weight to a full-term baby.

Doctors said the patient was continuing treatment for his other medical conditions and was in good health after the procedure. The report also noted that the stone likely developed over five to 10 years. In general medical terms, bladder stones form when minerals in urine crystallize, often when the bladder does not empty fully. Smaller stones may pass on their own, but larger ones can obstruct urine flow and need surgery. The article placed the case in context by noting that Guinness World Records lists a 1.9-kilogram bladder stone removed in Brazil in 2003 as the previous benchmark.