1. Left and right asymmetry after operation. It is difficult to operate because it is impossible for doctors to accurately calculate the size of the bone to be ground. During the operation, this phenomenon may also be caused by the asymmetry of human face contour and the negligence of doctors.
2. Facial muscle deformation after operation. Because some nerves grow close to the periosteum, if the doctor is not careful during the operation, it will lead to the separation of nerves and periosteum, which will hurt the sensory nerves and cause numbness. If the facial nerve is injured, it will lead to abnormal facial muscle movement.
3.
There was a hematoma after the operation. The main reason for this phenomenon is that the doctor put the drainage tube in an incorrect position. A lot of blood on his face.