I had my mirena inserted at my 6 wk checkup after my 3rd baby was born back in 2008. The insertion hurt but was bearable, I got a hot flush in my head and my doctor said "Thats because it's like someone harassing your internal organs." nice.
I had no problems with it at first, the cramping lasted a day, the bleeding was annoying at first, irregular and lasting 10 or so days but that finally settled and I started getting regular monthly periods but lasting 5 days instead of my 7 before IUD. I thought was normal because doc said its different for every woman, some stop menstruating and some don't.
I was feeling very moody start of 2010 so saw doc and asked if could be mirena. He said no. I was put on antidepressants which hasn't changed my feeling.
I went to another doc to have it removed on Tuesday. She couldn't find it so she did an internal ultrasound. Still not able to find it I was sent to a radiologist on Friday.
They couldn't locate it on ultrasound either. "Are you sure it didn't fall out" No I think I would've noticed that.
I had an x ray and they sent me home not saying anything. I called my doc from Tuesday and she said it is not in my uterus. It's in my abdomen! I wasn't in any excrutiating pain for me to think something had gone wrong.
If I had not just wanted to take it out for my own peace of mind I would not have found out its perforated.
Sorry it's long. If have it get regular checkups. Am interested in class lawsuit. It needs more research or at least more advice given to patients other than "Its the safest reliable way"