Breast Augmentation, or Augmentation Mammoplasty, is the enlargement of a woman's breasts through the placement of implants. According to the American Society of Plastic Surgeons, nearly 255,000 women in the United States underwent Breast Augmentation in 2003, nearly twice the number of procedures done in 1998.

Women undergo Breast Augmentation for a number of reasons including Small Breasts measuring an "A" cup or less; shrinking, loss of volume and sagging from Pregnancy and Breast Feeding; Asymmetrical or "uneven" breasts; Tubular or "Snoopy" breasts; loss of breast volume due to Weight Loss; loss of breast tissue due to Aging; Ptosis or sagging of the breasts (which is often treated with a combination of Breast Lift and augmentation with an implant to compensate for loss in volume caused by the lift); and Empty Sac Syndrome where there is a loss of breast volume while the breast "envelope" remains intact.