The inner double becomes double eyelid, which can be done by double eyelid surgery, including the buried wire method, Korean three-dot double eyelid and full-cut double eyelid. Full-cut double eyelid is widely applicable and can solve complex eye problems such as upper lid skin laxity, upper lid bloating, triangular eyes and inner canthus. The Korean 3-point double eyelid is a popular double eyelid surgery procedure and is generally more suitable for people with better eye conditions. The surgeon will first design a surgical plan based on the patient’s eyelid shape and other factors, draw the location of the crease on the upper eyelid, then make three small 3-5mm incisions in the line of the crease, located in the inner, middle and outer areas, and remove some of the subcutaneous tissue, some of the orbicularis oculi muscle and some of the fat through the incisions, and then close the incisions so that the skin and subcutaneous tissue The incision is then sutured to form an adhesion between the skin and the subcutaneous tissue and the lid or levator aponeurosis to form the upper lid crease. This is less invasive, quicker to recover and more natural than the traditional incision method. In addition, the sutures need to be removed after the procedure and there is no residual thread knot under the skin, so the candidate will not experience a reaction to the knot. Candidates can choose the right procedure according to their own situation and the doctor’s advice.