I've had a mirena in for nearly 4 years and think it is great. I've never had kids but had it inserted in Australia where my doctor didn't seem concerned about that. It is soooo much better than the pill. My only (maybe) problem with it is that I've developed some darkening above my upper lip in recent years that comes on with UV exposure. I've heard that this can be a result of birth control but I don't really know that it is linked to the mirena. Anybody else with this problem? Any solutions to it (other than copious amounts of sunscreen and a hat)?