About 20-35 ml in the lower jaw. 2-3 days of postoperative pressure bandaging is required. In addition, for patients who feel that their cheeks are full, round, with unclear boundaries between the local contour and the surrounding area, and presenting a ‘child-like’ face, the method of buccal fat pad removal can be adopted. The procedure is performed using local infiltration anesthesia and an intraoral incision to remove part of the prominent buccal fat pad to improve the appearance of the cheek. For patients with simple hypertrophy of the bite muscle, face slimming injections can be used to slim the face. The so-called face slimming injection is essentially the use of Botulinum Toxin A (BOTOX) injection to treat hypertrophy of the bite muscle. BOTOX was officially approved by the FDA in 1989 and has the advantage of being simple and easy to operate without anesthesia and does not affect normal work after the procedure. After two weeks to one month of injection into the bite muscle, you can observe the atrophy of the bite muscle and the change of the face shape. After three months, you can basically achieve the best face slimming effect, and you can obviously see the atrophy of the bite muscle by about 30%. In order to maintain a stable effect, injections should generally be given every 4-6 months and repeated 2-3 times. In addition, after surgery, attention needs to be paid to avoid frequent chewing movements (such as chewing gum, knocking melon seeds, etc.) in order to make the slimming effect long lasting. For patients with prominent bony hypertrophy, the only way to correct it is through osteotomy or bone grinding surgery. Partial amputation of bony tissues is an important tool for facial contour reshaping and cosmetic treatment, and it is really effective in cases of wide jaw angle, jaw foreshortening and high convexity of cheekbones. A wide jaw angle can be unacceptable for modern women. The normal angle of the jaw is about 120°. If it is too far from this angle, the face line is not smooth, showing a square or trapezoidal face, which is too masculine for women, without a sense of gentleness and cleanliness, not harmonious and beautiful enough, and not in line with aesthetic standards. The bony enlargement of the jaw angle requires bone grinding or osteotomy to solve the problem. The surgery of the jaw angle is delicate, requiring sophisticated surgical instruments, and the plastic surgeon must have both a sculptor-like artistic aesthetic and first-class surgical skills. The design should be based on the requirements of the beauty of the individual’s features, not just the pursuit of a thin face. The surgery can be done under general anesthesia or local anesthesia, and the method taken is an intraoral incision or a small incision behind the ear outside the mouth, which will not leave facial scars. Some people have a wide and thick face due to a combination of factors, so the “thin face” should be carried out from both hard and soft tissues, after the jaw angle amputation or grinding, and then the hypertrophic bite muscle treatment, can achieve immediate and perfect results. This requires a diagnostic evaluation by the surgeon and a comprehensive and suitable surgical plan for the candidate. The swelling gradually decreases in 3-7 days after surgery, and the stitches are removed in about a week. In addition, for high cheekbone face shape, the cheekbone area is usually ground or truncated, together with muscle suspension, so as to achieve a softer facial appearance. For the chin that is commonly known as the “ground chin”, jaw recession is performed. For patients with receding jaws, jaw osteotomy lengthening or chin augmentation surgery can be used to improve the contour of the face to make it three-dimensional and sexy. Facial beauty should be in harmony with the principle, so face slimming surgery should pay special attention to the degree of mastery. Excessive demand for a thin face will cause excessive thinning of the cheeks, resulting in an age-like change in appearance. Here it is necessary to remind the majority of women who love beauty attention is the above-mentioned various methods of face slimming have certain risks, especially jaw angle plastic surgery, easy to cause facial nerve loss, blood loss and other serious complications, so you need to go to the regular professional cosmetic surgery to ensure the safety and effectiveness of surgery. The development of facial contouring cosmetic surgery techniques has been driven by the needs of society. Through surgical means combined with advanced science and technology and instrumentation, it is entirely possible to reshape the contours of the face. The revision of the bone and soft tissues of the face can beautify the imperfect facial shape and make it achieve the unity of functional and morphological beauty.