Key Facts

• The surgery happened last week in a hospital in Trincomalee, Sri Lanka.
• The patient was first admitted due to a stroke and later found to have bladder stones because he had trouble urinating.
• The removed stone weighed as much as a newborn baby and was about the size of an ostrich egg, around 17 cm wide.
• Doctors believe the stone had been in the man's bladder for 5 to 10 years.
• Bladder stones form when minerals in urine turn into solid lumps, often if urine stays too long in the bladder.
• Stones larger than 4 cm are called giant bladder stones and usually need surgery.
• The previous largest bladder stone recorded by Guinness World Records weighed 1.9 kg and was removed in Brazil in 2003.
• The patient’s health is now stable, and he is still receiving treatment for other medical issues.