1, the inframammary fold incision: closer to the beginning of the lower pectoralis major muscle, not only can be fully stripped below the cavity, but also can avoid excessive stripping above the cavity, the postoperative prosthesis is less displaced to the upper, the cleavage is also very obvious, the shortcomings of the inframammary fold incision is: scar left below the breast, many unmarried people do not want to choose this incision. 2, the axillary incision: higher, the postoperative scar is more hidden, easier to implant breast implants in the deep surface of the pectoralis major muscle. However, it is difficult to fully strip the starting point of the pectoralis major muscle by this incision, and the cavity formed is large and small, with high postoperative prosthesis position, inconspicuous cleavage and unsatisfactory breast shape. 3.Incision in the areola: Designed in the areola, that is, within the pigmented skin. Since the areola is darker and uneven here, the incision scar is almost invisible after surgery, which makes the real traceless breast augmentation and the shape satisfactory.