abnormal uterine bleeding
"I am 18 years old and have constantly struggled with my weight. My doctor recommended Mirena, so that I wouldn't have to worry about quite so much hormonal weight gain. I had the Mirena inserted on October 31st and it is now December 13 and I am still bleeding. This isn't spotting, it is full blown, blood clots and a super tampon and liner, period. The cramps, which have subsided were so terrible the doctor put me on a pain medicine to cease them. For some this works great, for me? I'm seriously considering having it removed. I'd rather go on the shot and gain weight, then have a constant period."