Implanon was inserted into my arms 3 years ago. Since then, I have gained 12kg in weight, my skin is super dry, mood swings are terrible and always have back ache. The worst thing is now the doctor could not locate the Implanon (through x ray and ultra sound). I wanted to get it remove but there is no possible way other than cutting up my arms. This really scare me and it will be very expensive.
Question 1 : Can I just leave it in there without having it remove?
Question 2 : After the expiry date, will it still be effective?