Zygomatic bone inversion generally has sequelae such as facial sagging, stiffness of facial expression, and downward displacement of bone mass. 1. Facial sagging: zygoma can play the role of supporting the face, while zygomatic osteotomy will lead to the patient’s bone shifting back, and sagging of zygomatic bone area muscles after the disappearance of the supporting point. 2. Stiffness of facial expression: after zygomatic osteotomy, due to the stripping of soft tissues to cut the bone block, the patient’s facial nerves are damaged, and there are symptoms such as difficulty in opening the mouth and stiffness of expression. 3. Downward displacement of the bone block: the bone at the back end of zygomatic bone implantation cannot be connected, and it needs to be fixed by titanium plate. Fixation by titanium plate and titanium nail alone can easily make the zygomatic arch rotate and flip to the back and downward. This leads to the situation of bone disconnection and downward displacement of the bone block. It is recommended that patients consult with regular hospitals before undergoing zygomatic osteotomy to determine whether they are suitable for the surgery, and find a professional surgeon to perform the surgery in regular hospitals to minimize the probability of after-effects.