Regarding breast characteristics, both density and shape are known to affect the extent of breast points displacements. Figure 9 shows the superposition of pre- and post-surgical breasts of the same patient, when different densities are modelled. The resulting plots show that breast density impacts the magnitude of points displacements: the magnitude of displacements decreases as the breast density increases. In fact, this was the expected behaviour, because denser breasts have a higher fraction of glandular tissue, which is less deformable than fat.