The mouth is an important part of the five senses. Beautiful lips can make your lips more sexy and mature, but there are also many men whose mouths are too big to affect their image. Can it be solved by plastic surgery? Look at the introduction of Xinhua plastic surgery experts. Men's big mouth, now commonly known as big mouth deformity. Bigmouth malformation is generally congenital dysplasia, which is caused by the developmental disorder of the first or second branchial arch. It is a manifestation of transverse facial fissure, often accompanied by other facial deformities. In view of this situation, oral surgery can be done. Unilateral simple, subject to the healthy side; In case of bilateral deformity, the normal corner is the point where the vertical line of the inner edge of the two corneas intersects with the horizontal line of the oral fissure. After incision, skin and oral mucosa were sutured respectively. In order to avoid too tight squab, we can design mucosal cross-flap at squab to make squab more natural. In order to avoid scar contracture and displacement after skin suture, one or more groups of Z plasty are often designed according to the crack degree.