birth control
"When I first got the implant in 1 1/2 years ago I had my period non-stop for 2 months and have only had one period since then. I had extreme muscle fatigue and pain for a month after the implantation.  I experienced no weight change but went from having perfectly clear skin to extremely bad acne. I also have experienced extreme changes in mood since getting it in. I've considered getting it taken out because of the acne issues but am enjoying not having a period."