abnormal uterine bleeding
"I'm 18 years old, I have no children, and I'm not sexually active.  Ever since I was 11 I've had extensive issues with my period.  After trying a number of different methods that didn't work to control the bleeding and pain, my doctor suggested mirena.  I had it inserted under general anesthetic, the first few days I was crampy but the cramps were nothing compared to the accidental rip from the speculum (ouch!).  I started bleeding immediately after insertion, and in 3 months it still hasn't stopped.  It's gone down to a back and forth between light to medium bleeding and spotting.  I can usually get by with a thick pantyliner.  I've had some awful cramps while ovulating and on heavier days. Helpful with lessening blood loss, not cramps."