Subcutaneous implant contraception, okay?

Subcutaneous implantation contraception is a long-term contraceptive method, contraceptive rate is high but it has a large side effect, such as easy to affect menstruation caused by menstrual dripping, serious even lead to amenorrhea, in addition to affect mood, if the implantation time is too long, want to take out will also become difficult, so subcutaneous implantation contraception is relatively bad.