Atrophic lines are red, white or purple stripes that are caused by the breaking of skin fibers during pregnancy, fitness and sudden weight gain. It also includes obesity lines, athletic cracks, movement of larger body parts, in addition to the abdomen, but also the inner and outer femur, knees, hips, lumbosacral and other parts of the body. Atrophy lines can be caused by weight loss, obesity fat deposits make the skin expansion, when weight loss, the expansion of the skin atrophy, thus appearing some patterns; expansion lines is due to bone and muscle growth is too fast, more than the speed of the skin’s lengthening, dermis of the elastic fibers are pulled off, thus the formation of. Puberty atrophy lines not only women have, men also have, it is healthy men and women a physiological phenomenon during adolescent development. Puberty shrinkage lines appear in most of the time after the pubic hair grows out, and most of them appear at the same time with the “acne”. Men mostly appear on the inner and outer thighs and waist, while women mainly occur in the lower abdomen, legs, breasts and other places. Atrophic lines at first slightly above the surface of the skin, and later gradually become a parallel arrangement of irregular stripes or bands of skin depressions, depressions where the skin becomes thin, the surface is bright, up to several centimeters long, about 1 cm wide, the color of light red or purple. Atrophic lines do not hurt, itchy, and there is no other discomfort, there is no effect on health. Stretch marks are also a kind of atrophic lines. Stretch marks are purple or pink stripes that appear on the lower abdomen, thighs, buttocks or breasts during pregnancy. During pregnancy, as the fetus grows and the amniotic fluid increases, the pregnant woman’s uterus will gradually expand. Due to endocrine changes during pregnancy, the elasticity of the skin (fibers) weakens, brittleness increases, and the walls of subcutaneous capillaries and veins become thin and dilated. After 5 months of pregnancy, the uterus is growing, breasts due to the development of mammary tissue and the deposition of fat tissue also grows, resulting in breasts, abdomen and upper thighs, skin stretch thinning, elastic fiber fracture, when the abdomen in the rapid expansion of the situation, more than the skin’s degree of elongation, will lead to subcutaneous tissues are rich in fibrous tissues and collagen fibers, can not withstand the expansion of the fracture, through the subcutaneous blood vessels of color and the formation of stretch marks. Stretch marks are a physiological change. Stretch marks are a physiological change, the localization will have mild pain and itching, but not harmful to health. Prevention of stretch marks: During pregnancy, you can take some conservative ways to treat stretch marks, you can do to improve the diet and lifestyle habits. First of all, take more vegetables and fruits, protein and fiber in your diet. And high-calorie, high-fat food should be reduced intake, away from sweets and fried products, to avoid excessive intake of sweets and fried products, should take a balanced nutrition, you can improve the skin texture, and help the skin look more elastic. At the same time, more walks slowly, in order to reasonably control the weight, pay attention to maintain a pleasant mood. This not only enhances physical fitness, but also can play a role in the prevention of stretch marks stretch marks. Stretch marks (atrophy lines, obesity lines, fracture lines) of the treatment: particularly mild can first try to choose to supplement collagen (external hyaluronic acid), wear body shaping underwear and other methods, limit the amount of sugar intake, eat more fiber and protein, or with some of the quality of the repair factor, epidermal growth factor or essential oils can play a role in alleviating some of the massage. For the moderate to severe, they are more concerned about the appearance of the image, then consider going to the regular hospital for proper treatment. The treatment method is basically the same as the minimally invasive treatment of scars, the traditional general treatment with fractional laser (exfoliative, non-exfoliative), now the new technology is fractional radio frequency, but my personal experience is more like a variety of technologies combined treatment, according to the actual situation of the choice of different devices, or combined two or three different devices at the same time. Unlike traditional fractional lasers, fractional radiofrequency adopts an electrode to transmit electrical wave energy (not the light wave energy of lasers) and generates an electric field across the surface of the skin into the subcutaneous tissue. At high frequencies, the natural electrical resistance of the subcutaneous tissue moves to generate thermal energy, which deforms and contracts the collagen in the dermis to achieve a therapeutic effect. Fractional radio frequency was first used for the purpose of skin tightening and wrinkle removal, and then with the increase in the use of hospitals, a lot of new features have been gradually developed, and now we gradually agree that for scars, acne pits, enlarged pores, stretch marks, and atrophy lines these have a better therapeutic effect. Fractional radiofrequency is a non-invasive treatment that is now ing a safer and more effective than traditional lasers. Unlike the light wave of laser, the radiofrequency wave is not absorbed by melanin when it penetrates the barrier of melanin cells in the epidermal base, so it can make the collagen fibers of the dermis layer heated up to 55℃-65℃, and the collagen fibers contract, stimulating the dermis layer to be reconditioned in a more powerful way than the traditional laser. And compared with laser, after radiofrequency treatment, the duration of action is longer, even 2-6 months after treatment, after the stimulated collagen tissue gradually complete the regeneration process, most of the treated people can still see the skin is tighter and more delicate than a few months ago, while the effect of laser is generally only maintained for 2 months. For reddish fresh stretch marks or atrophic lines, use non-ablative fractional laser or fractional radiofrequency treatment. For old, whitened stretch marks or atrophic lines, I generally prefer to use ablative super pulsed fractional to open up the surface channels first, and then at the same time with the fractional radiofrequency to do the deeper layer of the treatment. Of course, no matter fractional laser or fractional radio frequency, after the treatment has opened the absorption channel of the skin, after the operation with timely medication, can also play twice the effect with half the effort. Stretch marks or atrophic lines, if you want to treat, the earlier the treatment, the better. According to my own rough statistics, realistically speaking, generally if the onset of half a year to start treatment, the efficiency may reach 80-90%, but with the passage of time, the efficiency of the slowly and gradually reduced, the onset of three years or more to start the treatment, then the general efficiency is only 30-50%.