I had absolutely no symptoms of anything related to my digestive system until after I had the Mirena inserted. I have had it over 2 1/2 years and finally switched OBGYN's and found one who would remove it. I feel like if I never had it, I would not be in the state I am in now. In addition to the Crohn's, I have had numerous other side effects as well. Does anyone else out there have the Mirena? And if so, did you first start showing symptoms of Crohn's after getting it?