Double eyelid repair is a re-repair surgery for failed cases in double eyelid surgery, and it is also a surgery that requires a high level of skill from the surgeon. The effect of double eyelid repair should be natural and symmetrical from left to right, so that the beauty can be recreated. Therefore, it is important to go to a professional institution and have the surgery performed by an experienced professional doctor. The best time for double eyelid repair is divided into two main stages: 1. Early repair: If there is a double eyelid with serious morphological or functional problems after surgery, as well as the symptoms of failure have seriously affected daily life and caused psychological barriers, early repair can be performed. Applicants who had their eyelids done for the first time at a relatively regular institution without too much damage to the eye tissue can consider repair within a week; 2. Stable repair: Repair is generally recommended 6 months after surgery, after the heavy eyelid shape is set. For those who have just had blepharoplasty, immediate repair is not recommended because the early tissues are in a state of edema and it is difficult to accurately determine the final effect of the blepharoplasty. It is also recommended to go through the scar growth period 1-3 months after blepharoplasty, as this can stimulate the scar to grow again.