One of the concerns about plastic surgery on adolescents is that their bodies are still maturing. In addition to development that may occur in the late teens, growth charts indicate that the average girl gains weight between the ages of 18 and 21, and that is likely to change her desire or need for breast augmentation as well as liposuction. There are no epidemiological studies or clinical trials on the safety and long-term risks of these procedures for adolescents. Although the FDA approved saline breast implants for women ages 18 and older , it is legal for physicians to perform breast augmentation for anyone under 18 as an “off-label” use, and the number of teens 18 and younger undergoing breast augmentation tripled from 2002 to 2003. It was not until December 2004 that the American Society of Plastic Surgeons stated an official position against breast augmentation for patients under 18.