In this study designed to quantify the degree of breast enlargement produced by augmentation mammaplasty, 112 women who underwent breast augmentation were interviewed. The size increase that typically resulted from various implant volumes was measured by comparing preoperative and postoperative bra sizes. For the study group as a whole, the average increase was two bra sizes (either increased cup size or a combination of increased cup size and chest circumference), regardless of the implant volume inserted. Patients also were asked a series of questions to evaluate the impact of the surgery on various psychological parameters, including body image, feelings of self-confidence, and interpersonal relationships. Along with having a very positive body image, the group reported decreased self-consciousness (86 percent) and heightened self-confidence (88 percent); in addition, 95 percent said they felt better about themselves after surgery. The women's satisfaction with the results of augmentation and the success of surgery in meeting their expectations also were measured. Eighty-six percent reported being completely or mostly satisfied with the postoperative results, 86 percent felt the operation was a complete success, and 95 percent said that augmentation met their expectations.