abnormal uterine bleeding
"Mirena was recommended to me to calm down increasingly 'flooding' periods (more than a year of them) and ease me into menopause.  It was inserted early July 2015 - a bit crampy but bearable.  I bled almost every day (varying amounts, but more than a panty liner would take most days) until the end of September.  Even when flow was very light, I didn't trust it.  Sex life suffered due to the mess (but no issues with strings!) I was thrilled to finally have a bleeding free three weeks - but then a period - as heavy and flooding and long (or longer!) as the ones I was trying to get rid of!!  First visit post insertion is scheduled for Nov 10 and at this point I'm very disappointed."