The FDA approved silicone breast implants in 2006 for use in patients undergoing breast reconstruction at any age and in patients undergoing breast augmentation age 22 and older. Their rationale is considered arbitrary by many plastic surgeons, but is designed much like legal drinking age - people should be old enough to make good decisions. Practically, you should consult with a board certified plastic surgeon. Some surgeons follow the FDA guidelines and some surgeons will allow you to sign a waiver that the silicone implants will be used "off label" meaning outside the scope of what is approved by the FDA. In either situation, you should have a clear understanding of the benefits and risks of each of your options. All three breast implant manufacturers in the United States (Sientra, Allergan, and Mentor) offer various warrantee plans which can provide a new implant at no cost to you if there is a premature rupture (all three manufacturers), or in some cases for the development of early capsular contracture (Sientra). These warrantees often include some form of financial support for the cost of another surgery. Be sure to ask your surgeon if you will qualify for these warrantee programs if the silicone implants are used "off label." The warrantee plans are a significant benefit in the event that you need another operation.