Let's ask experts to help us analyze the characteristics of the square face and the corresponding method of shaping the mandibular angle. Features of square face: short face, not wide but with strong lines, strong sense of bones, short chin and slightly raised tips. Mandibular angle plastic surgery method: mandibular angle splitting surgery. This operation is to remove the external bone of the mandibular angle without removing the whole mandibular angle. Advantages of mandibular angle plastic surgery: the face shape of this face shape will not be too wide, and often only the back part of the chin is more prominent. By cutting off part of the mandibular angle, the width is reduced and the original facial curvature is preserved. Difficulties in mandibular angle plastic surgery: high risk, bleeding needs to be controlled, and people with poor coagulation function, anemia and facial hemangioma are not suitable for this method.