Decline lines, or nasolabial folds, are two wrinkles that extend down the sides of the nose. Injections, radiofrequency treatment and surgery can be used to remove these lines. 1. Injection treatment: Injecting fillers in the bilateral nasolabial folds can achieve the effect of removing the decollete lines. Commonly used injection materials include hyaluronic acid, poly-L-lactic acid, collagen and so on. However, injection treatment cannot maintain a satisfactory shape for a long time, and repeated injections are needed. 2. Radiofrequency treatment: radiofrequency refers to the emission of high-frequency electromagnetic waves on the dermal collagen, so that the dermis is heated, thus promoting the contraction and reorganization of collagen fibers and elastic fibers, and thus achieve the purpose of tightening the skin and reducing the appearance of lines. 3. Surgery: For patients with obvious facial skin laxity, surgical methods can be used to remove excess skin, restore and rebuild the aging anatomical structure of the face to achieve the purpose of removing the lines. Such as face lift, maxillofacial orthopedic surgery. Boys with the need to remove the decree lines, should go to a regular hospital plastic surgery clinic, under the guidance of a specialized doctor to carry out regular treatment.