abnormal uterine bleeding
"Age 23. I had my 1st Mirena at age 18 due to very heavy and painful periods. The first 3 years my period had stopped (can't remember after what month)  with just a few days of spotting here and there. During the last 2 year of my Mirena insertion, my period returned. They were normal when compared to my periods before the insertion. So I had a new Mirena inserted 12/14/16. It's been 5 months and  I have had very heavy periods every month with painful cramps. I have to empty my menstrual cup every 3 hours (when nomal periods can go 12hrs without emptying). I'm going to wait another month to see what happens but I might switch to the pill if this continues. Has anyone's period stopped after 6 months or a year?"