If the lips are curved due to dental bump, you can choose braces to improve it; if it is due to bony bump, you can choose orthognathic surgery to improve it; if the lips are curved alone, you can choose lip reshaping. 1. Braces: There are many reasons for lip curvature. For lip curvature caused by dental convexity, you can choose to wear braces to straighten teeth, and lip curvature can be improved by yourself. 2. Orthognathic surgery: If the upper jaw protrudes forward or the lower jaw protrudes forward and causes the bony bumpy lips, only orthognathic surgery can be taken to adjust the incongruous relationship between the dental arches and the jaws and establish a good relationship between the teeth and the jaws, and then the situation of the lips being curved can be improved. 3. Lip plastic surgery: If there is no protruding teeth, abnormal development of jaws and other conditions, but simple lips, you can choose lip plastic surgery, surgical methods such as thick lip thinning surgery, heavy lip plastic surgery. If you want to improve the situation of lip curvature, it is recommended to go to a regular hospital, according to the individual situation, choose the appropriate way to deal with.