Zygomatic reduction is generally suitable for patients with anterolateral facial protrusion. Intraoral incision is often used to separate and expose the subperiosteal zygomatic bone, and special instruments are used to chisel the designed zygomatic bone before operation, thus narrowing the external contour of the face and improving the face shape. The biggest advantage of this kind of operation is that there is no scar and no trace after operation.