How soon do kidney stones develop?

At any age: Kidney stones can develop at any time from birth onwards. Newborns can develop stones as result of medication such as lasix (furosemide). Stones can develop quite quickly when subjects get dehydrated ; urine is concentrated with calcium, uric acid etc.People with hypercalcuria (2 much calcium) inflammatory bowel disease, oxalosis, cysteinuria or prolonged recumbency such as after a leg fracture all stone prone.