birth control
"I've had the Implanon in since October 07 - brilliant. For the first 6 months I had bleeding/spotting. For the second 6 months, I got my period for 2-3 days every 2-3 weeks. However since January 09, no period at all (whoppee!). I actually lost 4-5 pounds after getting it in due to the constant bleeding. My libido has fluctuated a bit every now and then (very very high just after I got it put in, and somewhat lower at the moment).  I have several friends who also got it inserted: 3 had similar experiences to me, another had it removed due to anxiety/ depression (but bear in mind she was only 16 at the time which I think would be a bit young to get it!), and another had it removed due to bad acne. Everybody's different, it's worked for me though."