abnormal uterine bleeding
"If I could give the Mirena a 20, I would! I had it inserted in August 2013 for endometriosis and I have had one period since; and I use the phrase period loosely (I barely bled for around 36 hours. It barely warranted the use of pantyliners). My primary reason for getting it was to keep my endometriosis at bay; it is an estrogen dependent disease that thrives during your period, so my doctor killed two birds with one stone. My insertion was mildly uncomfortable during the part where they open your cervix, but my doctor also had me take 800mg of Ibuprofen an hour before my appointment. The whole insertion process took less than two minutes. I had absolutely no spotting, cramping for three days. Added bonus, sex drive is through the roof!"