abnormal uterine bleeding
"I had Mirena inserted in April 2011 as a treatment for endometrial hyperplasia with atypia and uterine polyps.  The hyperplasia was gone at my 3 month biopsy and the polyps cleared by my 6 month biopsy.  I am 41 years old and never had a child.  My periods used to be heavy and now are very light for one to four days, only needing a liner. The main adverse side effects that I have experienced are breast tenderness a couple of days a month, more clear discharge throughout the month, and a little more acne.  I can live with them knowing that the hyperplasia has been treated. I have even been able to continue losing weight.  I would definitely recommend Mirena as an alternative to using Megace, which is the normal course of treatment."