"i have had mirena for about 3 years now and the only good thing about it is that it&#039;s pretty much 100% effective and i don&#039;t have periods anymore.  but sex is sometimes extremely painful, my boyfriend can sometimes feel the strings poking him and it&#039;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."