The graceful curves of the female figure have been idealized in stone and paint throughout history since the time of the ancient Greeks. While feminine beauty is not solely defined by any one part of the body, breasts that are proportionate to a woman's physique give her form a balanced appearance. Women who are not amply endowed because of a lack of normal breast development may feel less feminine or attractive, and this poor body image may erode self-confidence and self-esteem. The same may be equally true of women experiencing a decrease of breast volume following pregnancy or menopause. Whatever the cause, the goal of breast augmentation is to give the female patient fuller, more equally sized breasts without disturbing their normal functioning. Under some circumstances, augmentation is also an effective treatment for sagging breasts (ptosis), a condition associated with aging, weight loss or pregnancy.