The face slimming injection is a way to adjust the facial contour of many beauty lovers at present. After the injection of slimming needles, the following hazards may arise: 1, the commonly used slimming needles are mostly botulinum toxin preparations, mainly relying on paralysis of the nerve to play a role, so that the nerve to muscle loss of control, to atrophy the effect of local muscle. The amount of botulinum toxin injection is generally large, for some sensitive body lovers, even within the safe injection amount, there will still be liver and kidney function damage, and even irreversible liver and kidney failure; 2, botulinum toxin control muscle atrophy is only a short-lived process, can maintain about 3-6 months of slimming effect, but the jaw bite muscle as an indispensable piece of muscle in the daily chewing process, with If patients go to small clinics with incomplete sterilization facilities and choose inexperienced doctors for injection, facial infection, facial unevenness, inflammation and pus in the wound may occur.