There are many ways to treat medial canthus, but the current mainstream treatment method is still surgery to improve the shape of the medial canthus, which must be performed only after the patient has reached adulthood and after growth and development. There are many different surgical methods for the canthus, including local Z reshaping of the medial canthus, transverse incision of the medial canthus, walking sutures, local revision, V-Y shaping of the medial canthus, some double eyelid surgery at the same time as the blepharoplasty incision can improve the medial canthus at the same time, sometimes two incisions have to be designed to overlap in unison, and others through internal medial canthal ligament shortening and skin In other cases, the shape of the inner canthus can be changed by shortening the internal canthal ligament and skin trimming, and shortening the canthal skin cover can give a better shape to the inner canthus area. Currently, most of the treatment of medial canthus requires surgery.