Clinically, the operation of double eyelid surgery is still relatively simple, with the development of medicine, double eyelid surgery technology has become more and more mature, so the probability of failure is generally smaller, but there is no authoritative data on the exact probability. In fact, the main reason for the failure of the surgery is that those people who pursue beauty ignore the risks of double eyelid surgery and choose informal plastic surgery medical institutions to perform the surgery. Some so-called plastic surgeons have varying levels of skill, resulting in poor surgical results and even eyelid ectropion, difficulty in closing the eyelids, and obvious scars. Basically, the chances of having a failed eyelid surgery are actually very low nowadays. It is recommended that people who want to avoid the failure of double eyelid surgery must choose regular plastic surgery hospitals and professional plastic surgery experts, and take good post-operative care in time to ensure the safety and effect of the surgery.