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

Doctors at a hospital in Trincomalee, Sri Lanka, have removed a 3.1kg bladder stone from a 55-year-old man, which they claim is the largest of its kind on record. The stone weighed as much as a full-term baby and was around the size of an ostrich egg. According to Dr Prahalahan Balakrishnan, who led the surgery, the patient had been carrying the stone for about five to 10 years. This would be a significant increase over the previous Guinness World Record holder, which weighed 1.9kg in 2003.

Written locally by qwen2.5:14b on 2026-08-18, using this article's own text rather than the other coverage of the same event (that is the story summary below).

Story summary

Doctors at a hospital in Trincomalee, Sri Lanka, removed a record-breaking 3.1kg (6.8lb) bladder stone from a 55-year-old man's bladder last week. The patient had been admitted for treatment after suffering a stroke, but doctors discovered the stone while trying to help him with difficulty urinating. According to Dr. Prahalahan Balakrishnan, who led the surgery, this is the largest bladder stone ever documented and removed through surgery. The stone weighed as much as a full-term baby and was about the size of an ostrich egg. Doctors believe the stone had been in the patient's bladder for around 5-10 years. Bladder stones form when minerals in urine crystallize, and they are more common when the bladder doesn't empty properly. The patient is recovering well at the hospital, although he still needs treatment for his other medical conditions.

Written for “Record Bladder Stone Removal” on 2026-10-16, grounded in this article and the 0 other(s) covering the same event.

📰 Record Bladder Stone Removal

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🔮 Dr Balakrishnan added the stone would have been in the patient's bladder for about five to 10 years.

2026-08-18 · assertive framing · Doctors remove 3.1kg stone from man's bladder and claim record

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BBC Sinhala

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🔮 Dr Balakrishnan added the stone would have been in the patient's bladder for about five to 10 years.

2026-08-18 · assertive framing · Doctors remove 3.1kg stone from man's bladder and claim record

The only article under this byline in the corpus.

- Published Doctors in Sri Lanka have removed a 3.1kg (6.8lb) bladder stone from a man - which they believe to be the largest of its kind on record. The procedure was carried out last week at a hospital in Trincomalee, in the east of the country. The 55-year-old patient had been admitted to hospital after suffering a stroke. asserted

patient → publish → stroke

But while receiving treatment, doctors found stones in his urinary bladder after noticing that he was experiencing difficulty urinating. asserted

he → receive → difficulty

During surgery, doctors removed the bladder stone - it weighed as much as a full-term baby and was around the size of an ostrich egg. asserted

it → remove → egg

"According to available records, it is the largest bladder stone ever documented and removed through surgery," Dr Prahalahan Balakrishnan, who led the surgery, told BBC Sinhala. uncertain

who → accord → Sinhala

He added that the patient was in "very good health". asserted

patient → add → health

The patient remains at the hospital and is continuing to receive treatment for his other medical conditions, doctors said. asserted

doctors → remain → conditions

Dr Balakrishnan added the stone would have been in the patient's bladder for about five to 10 years. asserted

stone → add → years

Bladder stones are formed when minerals in the urine crystallise, turning into solid lumps. asserted

minerals → form → lumps

They commonly occur when the bladder does not empty completely, leaving concentrated urine that can turn into crystals. asserted

that → occur → crystals

Small bladder stones, sized like grains of sand, can pass on their own. asserted

stones → size → own

But stones bigger than 1cm often block urine flow and require medical intervention. asserted

stones → block → intervention

A bladder stone that is larger than 4cm is considered giant. asserted

that → consider → cm

According to the Guinness World Records, the largest bladder stone was removed from a patient in Brazil in 2003. uncertain

stone → accord → 2003

It weighed 1.9kg (4.2lb) and had a length of 17.9cm (7in). asserted

It → weigh → cm

The bladder stone removed in Sri Lanka last week measured around 17cm-long. asserted

stone → remove → 17cm

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

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