abnormal uterine bleeding
"I got Mirena put in about a year ago. I was very happy with the depo shot, but because of the dr appts and the risk of bone density loss, I was recommended to get the Mirena. Prior to Mirena, I hadn't had a period in about 8 years (which I loved). The first 8 months or so after insertion were great. However, at month 9, I started a bleeding and had awful cramping which nothing helped (ibuprofen, heat packs, etc.).It was so bad and I was so unused to a period at that point (I was told I may have spotting the first 6mo after getting it put in, but that my period would most likely not restart),  that I made an appt with my gyno. Turns out, everything was fine. I just now have a very long, very painful period every month. I may go back to depo."