Doctors have removed a giant bladder stone that weighs as much as a newborn child from a man in Sri Lanka. The procedure was carried out last week at a hospital in Trincomalee, in the east of the country. Bladder stones are formed when minerals in the urine crystallise, turning into solid lumps. Tap the link in @BBCNews's bio to read more. #BladderStone #SriLanka #BBCNews