The left-right symmetry of the face is the basic condition of a person's facial beauty, and no one's face is completely left-right symmetry. However, if the left-right asymmetry of the face reaches a certain level, it will affect the appearance, and it is often necessary to achieve the basic symmetry of the left and right faces through facial processing. The asymmetry of left and right faces may be caused by the asymmetry of left and right bones. First of all, X-ray and CT should be taken to judge what causes bone asymmetry, to what extent, and whether surgery is needed. If the asymmetry between the left and right faces is not caused by bones, it is often caused by the muscles and fat of the left and right faces. Facial symmetry can also be achieved through treatment methods for soft tissues, such as surgery, filling and injection. Therefore, if there is a need for asymmetry between the left and right faces, you should first go to a regular medical institution to find out the reasons for the asymmetry between the left and right faces, and then treat the soft and hard tissues with asymmetry between the left and right faces.