I had Implanon inserted about a month ago and all the bruising and pain from injection subsided, but now it s tender again and a bruise is appearing over the length of the implanon. Is my body rejecting it?
Bit is unusual to be developing additional bruising after having it in place already for a month.  Is it possible that the area had some trauma like a punch, or did it get struck with something?  If not, I would have your doctor check it out.  It may be infected, or you may have some kind of allergy to the implant. This is very rare, but still possible.  Please let me know of you have any more questions.