Thread-embedding double eyelid (also called polymer molding) is to directly embed suture (or polymer suture) between skin and meibomian through suture, so that the skin of upper eyelid adheres to meibomian, forming double eyelid surgery. This method is simple and convenient to operate, with little trauma, no scars, rapid swelling reduction and no need to remove stitches. It is more suitable for young people, with thin eyelids, long eyes and no sagging skin. Not suitable for people with thick eyelids, flabby skin and older age, double eyelid surgery may disappear. The price is about 1000 yuan -3000 yuan. After double eyelid catgut embedding surgery, there will be swelling locally, and the swelling will reach its peak three days later. After a week, the big swelling will subside, but some small swelling may last for a long time, maybe about half a month. I suggest you go to a regular plastic surgery institution, which is safe and secure.