Breast enlargement underwear in a short period of time will make the breasts look as if bigger, this is determined by the principle of breast enlargement underwear, breast enlargement underwear is mainly through the role of extrusion, pressure so that the soft tissues around the breasts, such as breasts, or fat, subcutaneous soft tissues and so on to the middle of the chest extrusion, through the thrust, extrusion of the surrounding tissues so that the breasts look as if bigger, but in fact the capacity of the breasts has not become larger. It is not like silicone or autologous fat to make the breast itself larger to achieve the effect of breast augmentation, but only through the physical role of the breast around the tissue to the center of the migration, so that the breasts look as if larger, but in fact, breast enlargement underwear does not achieve the essence of the effect of breast enlargement. Breast enhancement underwear if worn for a long time will affect the blood circulation of the chest, because the pressure on the chest is relatively large, wear a long time is not good for health, not recommended to use breast enhancement underwear for a long time to achieve the effect of breast enhancement.