There's a LOT of ancedotal reports on the internet (if you do a google search Mirena + hair loss) that it caused hair loss. The sythetic progesterone or progestin that is used is derived from testosterone and is highly androgenic, therefore not "hair friendly". I had one in for 4-1/2 yrs. It stopped my periods altogether after about 6-7 mos. I never knew for sure if/when I went through menopause. I recently had it removed hoping it was the hair loss & oily skin culprit. I am now on bio-identical estrodial called divigel and I also use 100 mg of prometrium. (which has REALLY helped with horrible insomnia). This past week my hair loss has slowed significantly and I can get by with washing every other day. However I can't say if that will continue OR if it's because there is so much less to lose therefore percentage wise it's the same OR if menopause itself was the culprit. I just don't know. Personally for me, if I had it to do over, I would not have that "thing" inserted. (that's what my naturopath called it - my GP when I complained of hair loss said, "I wonder if it could be the Mirena?" and later a naturopath urged me to "get that thing out") It's only been out a little over a month. The oily skin remains unchanged so far. Hope this helps you in making your choice. My vote would be a definite NO. There is someone else who used to post on here who thought it started her hair loss as well. Do a search.