Atrophic lines are skin fiber breaks that occur during growth and development, pregnancy or sudden weight gain, and are caused by pregnancy. The formation of atrophy lines is mainly due to the hormonal influence of local tissue growth or expansion, which causes the elastic fibers and collagen fibers of the skin to be damaged or broken to varying degrees due to external pulling, resulting in thinning and thinning of the skin, and the appearance of some pink or purple wavy patterns of different widths and lengths. After a period of time, these patterns will gradually disappear, leaving behind white or silvery-white shiny scar lines, or atrophy lines. Some patients with stretch marks are often accompanied by a sagging of the abdominal skin, and the skin even shows “orange peel-like” changes. Radiofrequency, or RF current, is an abbreviation for high-frequency alternating electromagnetic waves, and is an ideal technique for heating subcutaneous collagen fibers that is non-invasive, painless, without follow-up care and without side effects. Under the action of RF electromagnetic field, the neutral polar molecules of the skin and subcutaneous tissues produce high speed rotational vibration, which results in rapid heating of the tissues. The increase in temperature promotes the decomposition and metabolism of subcutaneous fat; stimulates the proliferation and reorganization of collagen and elastin fibers to tighten the skin and reshape the body. Radiofrequency treatment combined with fractional laser and microplasma treatment promotes dermal collagen remodeling, bringing light to the treatment of atrophy lines, especially stretch marks.