This is mainly related to the anatomical structure of eyelid and surgical incision. Eye skin tissue structure is loose and easy to edema, and the lower end of eyelid is free edge. When the surgical incision cuts off some of the reflux veins and lymphatic vessels, downward reflux cannot replace upward reflux, so upward reflux is still needed. Therefore, the slow reflux and swelling will gradually subside before the reflux is completely rebuilt. Especially in the early stage (5~7 days), after the large edema subsided, the slight swelling subsided slowly, which was mainly related to the slow pace of lymphatic reflux reconstruction. In addition, after 1~2 months, the scar of the wound has slight hyperplasia and contraction, which will also affect the reflux speed and swelling. Therefore, after double eyelid surgery, swelling is a natural reaction, and it takes time to reduce swelling, so we can't rush for success. Puyang doctor Zhang plastic