"i have had the mirena for a total of 10  years &amp; i&#039;m very pleased. the only part i don&#039;t like is the insertion process (yes, it can hurt, but it&#039;s a quick pain if you have a doctor that knows what they are doing), the bacterial vaginosis i sometimes get &amp; the ovarian cysts. everything else is great! i rarely have periods &amp; when i do i just spot a little (i used to have very heavy periods &amp; bad cramps). i also haven&#039;t ended up pregnant. i highly recommend this form of birth control."