Yes Crohn's patients are more prone to stones that most folks. It has to do with malabsorption in the scarred and inflamed terminal ileum . . . we tend not to absorb and easily dispose of certain minerals that can build up in the kidneys and urinary tract and form into stones or we don't absorb other things that help prevent them (I forget which, or maybe some of both) . . . or so it was explained to me. Quite a few people on here have had one or more experiences with stones. Silent stones that aren't causing trouble are usually not anything to worry about
unless they are blocking pathways in the kidney. There are also some meds that can be rpescribed to help reduce the probabilty of stones forming and breaking loose and causing trouble. Plus there is a 24-hour urine collection test that can measure one's likelihood of forming stones. All in all worth checking out.