Your breast implants will need to be replaced during the course of your life. Implants are not lifetime devices and are subject to wear and tear like any other implant device (e.g. tooth fillings, heart valves, hip joints).*
*Cohen BE, Biggs TM, Cronin ED, Collins DR Jr. Assessment and longevity of the silicone gel breast implant. Plast. Reconstr. Surg. 1997 May:99(6):1597-601 PMID:9145128"