abnormal uterine bleeding
"I have had the mirena for 9 months.  I was super nervous About having it inserted but it wasn't bad at all. A little uncomfortable but not awful.  I bled for about 3 months as expected before beginning to lighten and eventually didn't bleed at all.  It was wonderful and I have loved my mirena ever since. However I started bleeding heavily again about a week ago and I'm a little concerned. Hesitant to go to my doctor about what seems like a period but I think I need to."