This study examined the experiences of 360 women receiving bilateral breast augmentation with Dow Corning's Silastic MSI (textured) or Silastic II (smooth) gel-filled mammary implants. Before surgery, the women completed a quantitative assessment of their surgical expectations and concerns. At 6, 12, and 24 months postoperatively, they rated their satisfaction with surgery and its specific psychosocial outcomes, their concerns, and benefits-to-risks appraisals of the augmentation. The women reported very high levels of satisfaction with the procedure and its psychosocial outcomes, which did not change over time. Throughout the 2-year period, over 90 percent of the women were satisfied with surgery and their resultant body-image changes. Their concerns about risks, reported by 19 percent before surgery, declined after surgery and remained subsequently stable. Most participants (75 to 85 percent) reported that the benefits of surgery exceeded its risks. Postoperative events such as significant capsular contracture that compromised aesthetic results diminished aspects of satisfaction, whereas less obvious events did not. Systematic analysis of attrition (i.e., missing assessments) did not indicate any biases because of complications or psychosocial outcomes. Evaluation of a possible impact of the publicity surrounding the Food and Drug Administration's voluntary moratorium on the use of silicone gel-filled breast implants, which occurred during the study, revealed a limited effect, if any, on women's psychosocial outcomes. Findings are discussed in relation to the study's methodological strengths and limitations and with respect to the broader context of patient care.