Cosmetic surgery is a high-risk surgery: Many patients think that doing a double eyelid and a nose bridge is simple and should not have any risk, in fact, the risk is often hidden in the seemingly simple surgery. 1. Scarred body. These patients are characterized by keloid growth after skin breakage, can have obvious keloids when piercing their ears, and acne on the forehead can be the root cause of keloid growth. There is currently no medical way to perform this kind of body test before surgery, so these patients are advised to consider carefully when performing facial cosmetic surgery. 2. Implant-induced inflammatory reactions. Although almost all medical implants such as nasal implants and breast implants are not antigenic, individuals still have rejection reactions to them. This is manifested by the wound not healing easily after rhinoplasty, redness and swelling of the nasal tip, and frequent clear discharge from the nose. Angioneurotic edema of the upper lip and eyelids (sudden swelling of the eyes and upper lip for unknown reasons, which subsides on its own after a few hours) gradual hardening of the breast tissue after breast augmentation (contracture of the envelope). 3. Risk of infection. Incomplete disinfection of medical devices, irregular aseptic operation of doctors, improper care of the surgical area by the patients themselves, patients with diabetes and other immune system diseases. The patient’s body’s immunity is low such as suffering from a cold during the surgery. 4, the risk of unsatisfactory surgical results: this is the most likely to occur and the most easily ignored risk. The most important feature of cosmetic surgery is that people are asked to add flowers to the cake, not to send charcoal to the snow. Therefore, it is required that the surgical result must exceed the patient’s natural result. However, in addition to the surgeon’s own surgical experience and aesthetic qualities, the patient’s aesthetic orientation is also very important. Patients sometimes do not agree with the surgery that the doctor considers successful, while patients do feel very ideal about the surgery that the doctor is not satisfied with. How to avoid the above risks: 1. Patients should know their own physique and can consult their doctor to help judge. 2, familiar with the process of surgery, know the possible risks associated with surgery, have adequate psychological preparation. 3, that is, to choose a hospital also to choose a doctor: to know more about the doctor, not to blindly believe in some advertising campaigns, if the doctor said that the operation is 100% without problems, you should be careful. In fact, the human body is very complex, and even a simple surgery will have some risk. 4, scientific aesthetics: patients should establish a scientific aesthetic.