There is no time limit as to when or if you need to exchange your breast implants (I have also heard from patients that they have heard that breast implants need to be changed every 10 years). The only reason you need to exchange your breast implants is if you are having a problem with them or if you'd like to change the size.Some of the potential complications that may arise (necessitating breast implant exchange) would be deflation, capsular contracture, breast implant displacement concerns, or just size change. If you are happy with the size of your breast implants and are having no problems, you do not need to do anything. Best wishes.
Breast implants do not have an expiration date once implanted. Many can last 20+ years without issue.