"i was on depo for 10 years. the only side effects i experienced were a complete lack of period (which i think is great) but a reduced sex drive as well. there were also concerns from my doctor that i may experience bone density loss due to extended depo use. after some thought i went with the arm implant because it seemed fairly noninvasive compared to other methods. so far so good. it&#039;s been about a month. i was told if i had a positive depo experience i should have a positive implant experience because it&#039;s the same hormone with a different delivery method. i still don&#039;t have a period ( i actually like that) but i had a bad bruise at the insertion site initially, and a month in i can still see and feel the implant and it&#039;s sensitive."