To think my implant shouldn't have done this?

[Maxwellthecat]

So this is the third cycle of being on the implant so I've had it in around 8 years, I've always had a scar but I noticed this morning in the shower that the muscle under it looks like it's withered away. Has this happened to anyone else? I find it really disgusting. My other arm is toned and it looks awful.
My implant is definitely still attached.