Every operation is dangerous! As a kind of operation, mandibular angle plastic surgery will inevitably lead to the common complications of conventional surgery: infection, bleeding and anesthesia accidents. There is a gap between the postoperative effect and the expectation of beauty seekers, which is also a failure of mandibular angle plastic surgery. Therefore, it is very important to avoid the failure of mandibular angle plastic surgery and to communicate carefully between doctors and patients before operation. Mandibular plastic surgery failed, although mandibular angle plastic surgery has so many risks, it is not impossible, mainly because patients should carefully choose hospitals and doctors. Only regular, reputable hospitals and experienced doctors can minimize the risk and reduce the probability of failure of mandibular angle plastic surgery.