Each is unique and has its own risk profile. In general, however, risks include allergic reactions, infections, pain, and scar formation. Unacceptable results, while not a direct risk of the filler per se, can be a result from treatment by an inexperienced injector. You should talk to your physician to decide if fillers are right for you. Fillers can be expensive and you may require repeat treatments. 

Last updated on January 24, 2010 by Donald Sudy, MD