A breast augmentation apparatus includes a rigid cup-like hollow body having an expanded open end for receiving therein a breast with a resilient gasket member mounted thereto for providing air tight sealing between the hollow body and the skin around the breast and an opposite closed end with an air evacuation duct formed thereon with an air hose mounted thereto for connecting to a air evacuation pump for draining out air inside the hollow body. A nipple protector in the form of a cup for receiving therein and protecting the nipple from the influence of air evacuation inside the hollow body is resiliently supported inside the hollow body by a helical spring. The nipple protector has an open end with a resilient skirt mounted thereto for receiving and covering the nipple in an air tight manner.