birth control
"I have had Mirena for about 3 years now and the only good thing about it is that it's pretty much 100% effective and I don't have periods anymore.  BUT sex is sometimes extremely painful, my boyfriend can sometimes feel the strings poking him and it's uncomfortable to him.  I cramp on and off all the time.  I feel that I have become moodier and I have developed a bad attitude because of this IUD, but I could be wrong.  I had Mirena put in when I was 16, told my mom it was to help my irregular periods but truthfully I wanted it for birth control.  The procedure was one of the most painful things I had ever experienced in my entire life.  I bled for four months straight afterward.  I am considering having it removed soon."