As long as you make a good pre-operative assessment, choose the right surgery according to your personal situation, and operate in a regular hospital and under the supervision of a professional surgeon, you will be able to avoid the “side effects” of double eyelid surgery to the greatest extent possible. For those who are worried about the problem of sagging eyelids, in fact, with age, anyone’s eye skin will sag, which is a natural aging process, and has nothing to do with whether or not double eyelid surgery has been performed. In the early stages of double eyelid surgery, there may be asymmetry between the left and right sides caused by different degrees of swelling, double eyelids that are too wide, incomplete lid closure, bruising, etc. These are normal phenomena that require a certain amount of time for recovery. Candidates need to wait patiently after surgery, usually 3-6 months before characterization. However, if swelling, bruising or increased pain, difficulty blinking, etc. occur during the recovery period, it is important to contact your surgeon for a timely follow-up appointment and good aftercare to facilitate recovery. If a situation arises that requires restorative surgery, it also needs to be performed 6 months after a single surgery.