After double eyelid surgery, infection is the most important thing to pay attention to. If there is redness, swelling, pain, and heat and pain on the upper eyelid face, it is an infection. This requires the application of some effective antibiotics. After double eyelid surgery, if there is mild hematoma, it can subside on its own. But if there is a severe hematoma, it is necessary to open the incision to stop the bleeding, and in the sequelae of double eyelid surgery, triple eyelids may appear. This is because the design does not follow the arc and the tissue is removed. Unevenness or uneven positioning during suturing can lead to triple eyelids, which is also a common sequelae of double eyelid surgery.