Perhaps ten years ago, plastic surgery was still a very secret topic in China, but nowadays, plastic surgery has become a public topic for all people, just like makeup and dressing. However, as a plastic surgeon, I would like to warn you: plastic surgery has risks and the pursuit of beauty is safe. The pursuit of beauty is everyone’s right, but it is necessary to keep a sensible mind before deciding, blind plastic surgery not only can not bring beauty, sometimes may also be the beginning of a nightmare. Korean woman Han Miao Ke is a plastic surgery addict, she underwent plastic surgery after plastic surgery in Japan, but she did not gain beauty, but made her face more and more swollen and ugly, so that when she returned home, even her parents did not recognize her. The old couple took their daughter to the doctor and was diagnosed with a psychological disorder, but she gave up on treatment. Because no doctor would agree to continue her plastic surgery, the psychologically disturbed woman used syringes to inject silicone into her face, and eventually even started injecting cooking oil. Although her face became surprisingly swollen, and her petite figure resembled a standing fan, every time she looked at herself in the mirror, she wishfully believed that she had become more beautiful after the injections. This is an extreme case, but the unregulated injection beauty damage to the physical and mental health of candidates also happens from time to time, mostly because people do not know much about the material and technology of injection plastic surgery, attracted by the false advertising of some beauty salons, blindly do the injection, coupled with the injection material is inexpensive and unreliable, or the injection staff did not undergo strict training in doctor skills, the technology is not up to par, which makes injection plastic surgery The risk of injection plastic surgery increases exponentially, and finally plastic surgery is not disfigured instead, resulting in tragedy. The following we look at several injection materials and items commonly used in cosmetic surgery, as well as the risks that may occur, I hope the beauty crowd can choose carefully, safe to get beautiful. Botulinum toxin is an exotoxin produced by gram-positive anaerobic bacteria, there are 8 types of A, B, C1, C2, D, E, F, G. Our clinical choice is botulinum toxin type A. By selectively inhibiting the release of acetylcholine from the presynaptic membrane of peripheral motor nerve endings, it blocks the connection of the neuromuscular junction of the related expression muscles, thus reducing the activity of expression muscles and causing the reduction of active wrinkles on the corresponding parts of the skin. It is also popular among young and middle-aged women who love beauty, as it has a good effect on wrinkles between the eyebrows, head lines and crow’s feet. However, in principle, it is a neurotoxin, and if the level and site of injection and the amount of injection are not well grasped, it may lead to serious consequences. For example, some people have allergic reactions to Botox, and local and systemic immune reactions may occur after the injection. Repeated injections within a short period of time may also cause permanent muscle paralysis and the formation of a mask face. Botulinum toxin may also cause symptoms of toxicity if it enters the bloodstream through broken blood vessels. When treating crow’s feet, if the injection site is too close to the eye socket, it may affect the inner eye muscles and cause symptoms of double vision. When injecting, if the injection site or dosage is different between the left and right sides, it may also cause asymmetry in the appearance of both sides. Hyaluronic acid is a hyaluronic acid that is widely found in the connective tissue of vertebrates, mucus tissue, lens of the eye and the entrapment membrane of certain bacteria. Because hyaluronic acid has a strong water-locking and water-holding function, it can quickly absorb a large amount of water after injection, making the skin at the injection site gradually full, plump and elastic, so it is a very excellent filling material that can be used for wrinkle removal, nose job, apple muscle augmentation, etc. Although hyaluronic acid is a filler material with excellent safety performance, blind injection can also bring safety risks to health. A detailed blood test before the injection is essential. If the candidate often takes aspirin before the injection or suffers from coagulation disorders such as hemophilia, it will greatly increase the possibility of bruising after the injection. In addition the injection doctor should be very familiar with the anatomy of the injection site, if there are important blood vessels and nerves broken, or injected into the blood vessels, it may cause serious consequences. There was a report of a woman who injected hyaluronic acid in an unqualified beauty salon, and because of the failure to speak about the injection into the blood vessels, it caused blockage of the veins and arteries in the eyes, resulting in blindness. Therefore, the doctor should try to use blunt needles when injecting, and after the injection, the candidate should apply an ice pack to compress and ice the injection site to relieve swelling and pain. Because hyaluronic acid can be completely absorbed by the body, only the speed of absorption is related to the tightness of the skin, so after the injection, the candidate should avoid as much as possible the huge movement to prevent the phenomenon of unevenness of the injection site.