Face modification generally refers to the change of mandibular angle hypertrophy or square face deformity. The proportion of the upper, middle and lower parts of the face is appropriate, which generally conforms to the golden section standard and is in harmony with the length of the face. From the aesthetic point of view, there is a certain proportion of morphological collocation between organs, and it is everyone's characteristic to go beyond this range. If these features are not satisfactory, face change surgery is the most effective method. Generally, it is cut from the mouth, or bone grinding or osteotomy displacement, thus changing the original face shape.

Face-changing surgery is a personalized surgical plan that satisfies patients according to the specific characteristics of beauty seekers, so it can be said to be tailor-made beauty. In addition, the operation time is short, the recovery is quick, the trauma is small, the pain is less, and the work is generally not affected. Moreover, there is no trace of external skin after operation, which is very suitable for plastic surgery for the majority of beauty lovers.

However, face-changing surgery is a plastic surgery project with high difficulty coefficient, which requires high medical equipment, doctors' clinical experience, technical familiarity and facial aesthetic ability. In order to ensure the safety and surgical effect, we must choose a professional plastic surgery hospital. Many beauty lovers will have some undesirable side effects after surgery because they think too much about the price.

The possible side effects of changing face are:

1, facial paralysis: when operating on the mandible, it is easy to hurt the mandibular nerve and directly dominate the perception of the lower teeth and lower lip. Is the chief culprit of postoperative pain. If pulled during operation, it will cause temporary paralysis of lip perception after operation. Once injured, it may cause permanent sensory paralysis and other side effects of bone grinding surgery.

2, facial muscle distortion: injury to sensory nerves will cause sensory paralysis, and injury to facial nerves will involve facial muscle movement. For example, when doing cheekbone surgery, some nerves grow close to the periosteum. Once the doctor fails to separate the nerve from the periosteum, there will be serious side effects such as eyebrow lifting disorder and unilateral frontal muscle paralysis.

3. Left-right asymmetry: It is impossible for doctors to accurately calculate the width of the removed (polished) bone during the operation, and the face of the human body itself is not completely symmetrical. If the doctor is unskilled or negligent, it will lead to an increase in the asymmetry of the width of the face on both sides. Therefore, experienced doctors should not only be familiar with their facial skeletal structure, but also take X-rays (or magnetic vibrations) for operators before operation to clearly understand their unique skeletal structure.