What is the percentege of someone's body rejecting a silicone breast implant?

The body does not really reject an implant.  Once the implant is placed inside the breast, the body forms a capsule around the implant which is a normal process.  This in a way keeps the implant separated from the breast tissue.  If the implant where to become infected for some reason then this might result in the implant needing to come out.  In my experience I have never seen the body "reject" an otherwise normal implant.  Best of luck!

Thank you for sharing your excellent question.  Once placed into a woman's chest any implant, saline or silicone, becomes wrapped in scar tissue placed there by her own body.  This prevents the patient's immune system from "rejecting" the implant.  There can be issues where the implant does not heal appropriately, such as an infection, but thankfully this is quite rare.  Hope this helps.