Stretch marks have been growing for 10 years, it is usually difficult to eliminate them completely, and they can be lightened or improved by medical aesthetic means, such as lasers, photons, radio frequency, microcrystals, and so on. 1. Laser: It mainly applies the selective photothermal effect of laser to gasify and eliminate the uneven epidermal layer of the skin, improve the appearance of stretch marks, stimulate the regeneration and remodeling of collagen fibers and elastic fibers in the dermis layer, and promote the contraction of the skin, so as to achieve the purpose of reducing stretch marks. 2. Photon: also known as intense pulsed light, belongs to a broad-spectrum visible light, is based on the principle of selective photothermal effect, the output of intense pulsed light in the longer wavelengths of light, can penetrate into the deeper tissues of the skin and thus produce photothermal effect, photochemistry, prompting the skin collagen fibers and elastic fibers to rearrange and regenerate, so as to reduce stretch marks. 3. Radiofrequency: a non-invasive treatment that can promote short-term collagen fiber contraction and collagen fiber synthesis through non-selective heating, thus effectively reducing the length and width of striae stretch marks and improving the effect of stretch marks. 4. Microdermabrasion: the principle of physical grinding is used to remove the epidermal stratum corneum, improve the regeneration ability of the epidermis and skin texture, and achieve the reconstruction of the epithelial tissues of the stretch marks, improve the smoothness of the purpose. It is recommended that patients with stretch marks go to a regular hospital and choose the appropriate treatment under the guidance of a professional doctor.