We generally avoid using underwire bras for six to eight weeks following breast augmentation. There are two reasons for this approach. First, when patients undergo sub muscular placement of breast implants, the pectoralis major muscle may undergo spasm in the early postoperative period. This may force the implant in an upward direction and lead to malposition. When this situation arises, we utilize compression to force to the implant in a downward direction. An underwire bra would have the opposite effect. Another reason for avoiding underwire bras in the immediate postoperative period is the potential for the bra to irritate a fresh surgical incision. An inframammary incision would be directly beneath the underwire and might lead to irritation of the incision. After six to eight weeks, wound healing and muscle spasm should no longer be an issue. In most breast augmentation patients, it’s reasonable to resume the use of underwire bras at this time.