I had the Mirena IUC inserted in Nov 07 & a year later, I had an odor appear after my period in Nov 08. I got a prescription of Metronidazole & it cleared it up. This was at the same time of my yearly exam & nothing showed up in the lab work. The odor didn't come back until six months later, in June 09 after my period. I got another prescription & it cleared it up. The same goes for the next month, July 09. The odor is so strong, I can't stand to go to the bathroom & it is effecting my sex life. I haven't changed my diet or medications. Since I haven't ever had a problem with odor, I suspect it is the Mirena, but a year after insertion? What are your thoughts?