abnormal uterine bleeding
"I chose Mirena because I was having heavy periods with severe cramping along with terrible acne/pms symptoms. I am 27 years old and have never had children. I was very nervous before the procedure because of reading many terrible reviews. First off placement was the most painful experience thus far. Not even exaggerating.  I've got a very high pain tolerance and I thought I was going to pass out. I left the office in some serious pain/cramping and it continued for about a day. I spotted for about a week along with minor cramps. It's now been 2 months and I have not had any spotting/cramping or periods! My mood is better and for the first time in 10 years I haven't had any acne breakouts. Also zero weight gain! I love Mirena, best choice ever."