Hyperplastic scarring is a manifestation of skin connective tissue reacting to trauma beyond the normal range, often occurring after surgical procedures, trauma and burns, some people can also develop hyperplastic scarring on both sides of the chin and neck after severe acne, these scars not only affect the aesthetics, but also can have symptoms such as itching and pain, and can even cause serious dysfunction, affecting the patient’s quality of life, and the effective treatment of scarring The effective treatment of keloid scars has always been a difficult clinical problem. Medically, proliferative scars can be divided into three stages according to their development, namely proliferative, decompensative and mature stages. Proliferative scar usually starts to proliferate 1 to 3 months after wound healing and reaches its peak at 6 months. Its clinical characteristics are congested scar, bright red color and active proliferation, but it does not invade normal skin. After the proliferative phase, there is a receding phase, which usually takes 6 months to 1 year. During this period, the color of the scar gradually turns brown or dark red, the volume can become smaller, and the hardness becomes softer, and then it enters the mature phase, i.e. the resting phase, when the size, color and texture of the scar hardly change anymore and does not fade away naturally. There are other keloid scars that grow beyond the original scope of injury and will continue to expand to the surrounding area, showing a crab foot pattern with obvious congestion and bright red color, often accompanied by itching or pain, which are called keloid scars. Currently, there are surgical and non-surgical treatments commonly used. Microplasma treatment is a new type of treatment that uses electrons to get rid of the atomic bondage into the plasma state afterwards. Radiofrequency energy excites nitrogen into the plasma state, and the circuitry is used to control the energy ejected from the plasma to precisely control the depth of skin destruction. In the process of plasma blowing on the skin, the superficial layer is the “thermal destruction zone”, which physically destroys the lesion directly (epidermal “pigmentation” and dermal “scar”), while the deeper dermis is the “thermal correction zone”. The “thermal correction zone” stimulates collagen regeneration in the dermis, resulting in a flatter skin after treatment. Therefore, the use of microplasma therapy can not only improve the color of hyperplastic scars, but also promote the flattening of scar tissue, thus making the overall improvement of hyperplastic scars.