Recent focus on the functional outcome has, however, identified a new challenge - breast animation deformity (BAD), breast distortion or "jumping breast". The consequence of the condition is that women with aesthetic pleasant results, in rest, experience breast animation deformity during contraction of the major pectoral muscle. Evaluation of forty breast augmented women with a subpectoral positioning of the implant revealed that 77.5% had some kind of distortion during movement of the arm. In these healthy individuals, however, the condition is partly hidden by the glandular tissue and subcutaneous fatty tissue.