FDA: Breast Implants Update About this site: Find out the history of breast implants, why silicone implants are no longer widely available in the United States, and the common risks of breast enhancement surgery, straight from the Food and Drug Administration. (http://www.fda.gov/cdrh/breastimplants/indexbip.html) Pluses: Explains current medical news and information in straightforward terms. Minuses: Need special technology to read some documents. Best feature: Solid advice and information for women considering breast reconstruction after a mastectomy.