A breast augmentation is technically known as a mammoplasty. It is a
surgical procedure that is performed in order to enhance the shape of
a person's breasts in order to balance the differences in sizes
between the breast, reduce the volume of the breasts after a recent
weight loss or pregnancy, in order to enhance the natural body
contours or to enlarge the breast after they have become relaxed due
to aging.....more in http://www.loveherbody.com