(1) Design of surgical incision. It is directly related to the surgical effect. The design of incision position is closely related to the patient's requirements and the doctor's aesthetics, so patients should have a serious discussion with plastic surgeons before operation to avoid differences due to different understanding of postoperative results.

(2) Patients with scar constitution should not do this kind of operation, otherwise it will cause scar hyperplasia after operation and destroy the cosmetic effect.

(3) If there are facial infections, such as folliculitis and acne, etc. Facial dermatosis should be cured before considering facial plastic surgery.

(4) If conjunctivitis exists in both eyes, eye diseases should be treated first, and then eye bag surgery should be performed after the cure.

(5) It is best for women not to have surgery during menstruation, because there is much bleeding during the operation, the local swelling time after operation is long, and the reaction is heavy, which affects the surgical effect, so it is best to arrange the operation 3 ~ 4 days after menstruation is clean.

During the operation, we must be careful not to remove too much skin and orbicularis oculi muscle, especially the front part of the tarsal plate of orbicularis oculi muscle, otherwise the most common eversion complications will easily occur. Pay attention to stop bleeding thoroughly during operation, otherwise there will be postoperative hematoma, which will affect the surgical effect.

Generally speaking, three days after operation, the eyes were swollen obviously, and there were obvious blue spots around the orbit. The stitches were removed 5 days after operation. One week after operation, the swelling basically subsided, and slight blue spots or macula could still remain under the skin around the orbit. After 10 ~ 20 days, the swelling in the operation area will be completely reduced. If there is a slight separation between eyelid and eyeball after operation, it will return to normal in 2 ~ 3 months without reoperation. If there is obvious ectropion, it needs to be corrected again 3 ~ 6 months after operation.