The inner canthus is a vertical crease of skin in front of the inner corner of the eye. Due to the blockage of the inner canthus, it leads to a more rounded appearance of the eye and affects the beauty. To improve the medial canthus: 1. Inner canthus skin excision method: Applicable to patients with a small range of medial canthus type redundancy, the method is to simply excise the excess skin of the medial canthus, slightly peel it off and then tract the skin of the medial canthus toward the back of the nose to reveal the medial canthus angle and then suture the skin. This surgical method is not ideal and is rarely used nowadays. 2. “Y-V” suture method: This method is suitable for patients with light canthus. The suture will be traction sutured to the nasal side, and the wound will be transverse “V” shaped after suturing; 3, Blair-Brown’s method: for patients with larger medial canthus. The method is to make an incision in the medial canthus, peel off two triangular flaps, deep to the medial canthal ligament, close the medial canthal ligament to the nasal side, traction the two flap tips to the nasal side, suture the top of the transverse incision, and finally suture the skin edges in an “E” shape; 4.Ping He method: applicable to patients with medial canthal redundancy. The method is to make a “>” shaped incision in the inner canthus, peel the flap, fix a needle in the inner canthus, and loosen the redundant skin. The skin above and below the canthus is excised and then sutured into a “＜” shape.