The eyes are the window to the soul, and having a pair of big eyes with gorgeous eyelids is what every woman dreams of. Eyes play a vital role in the face, and there are four types of eyelids. Which one do you belong to? The four types of eyelids are the heavy eyelids, and there are four common types, namely parallel, open fan, narrow inside and wide outside parallel and crescent. 1. Parallel: The upper lid skin folds are parallel to the eyelid in the same way, and the inner, middle and outer focus on the lid are roughly the same width, so the heavy lid in this case looks foreign, dignified and stable. In addition, there are some people who are not obvious in normal times and can only be seen when the eyes are transient or closed, called internal double. 2. Open fan type: The upper eyelid skin fold starts at or near the inner canthus and gradually leaves the lid margin in an outward direction, changing from narrow to wide like a folding fan, also known as the wide tail type. There is also a gradual widening from the medial canthus outward, and many people with this shape have a combination of medial canthus. This type of heavy lid is beautiful and feminine. This is what is commonly referred to as the “phoenix eye”. Generally speaking, oval faces are suitable for parallel double eyelids, round faces are suitable for arc double eyelids, and melon faces are better with open fan double eyelids. 3.Narrow inside and wide outside parallel type: After starting from the inner canthus, it gradually stretches outward parallel to the eyelid, this eye shape has the double advantages of parallel type and open fan type. 4.Crescent type: The double eyelid line is curved at the inner and outer edges of the eyelid, and the widest at the center. There is a difference between a slightly larger or smaller arc, and an incomplete arc in the inner and outer canthus. The heavy eyelid crease is close to the inner and outer canthus at both ends and far from the lid margin in the middle, forming a crescent shape. The medial canthus is a curved fold of skin that connects the upper and lower eyelids in the medial canthus and is generally thought to be due to abnormalities in the structure of the orbicularis oculi muscle in the medial canthus. Because of its presence, blepharoplasty often results in a low skin fold on the upper lid and an inconspicuous blepharoplasty pattern; it also makes the lid fissure round in shape, which affects the surgical outcome. In the last decade, a variety of methods have been proposed at home and abroad to open the inner canthus in conjunction with blepharoplasty, however, most have complicated designs, obvious incision scars, and fail to restore the anatomy of the inner canthus. However, most of them have complicated designs, obvious scars, and fail to restore the anatomical structure of the medial canthus. In the past 30 years of plastic surgery, I have performed nearly 10,000 cases of double eyelid surgery in patients with medial canthus who required simultaneous canthoplasty. The skin and orbicularis muscle of the new medial canthus were fixed to the lateral nasal fascia, which fully conformed to the normal medial canthus anatomy, and the incision scar was hidden.