Most kidney stones occur when oxalate, a byproduct of some foods, binds to
calcium in urine. Other common stones are
calcium phosphate and uric acid stones. While no such reasons are established in India, Dr Deshpande feels that only lifestyle reason he would identify is the rampant use of
calcium supplements. ‘‘Another reason could be better availability of technology. A decade back, ultrasound screening wasn’t as frequently prescribed as it is today for children,’’ he says.