Classification of keloid scars There are many types of keloid scars with various shapes, uneven thickness and color, and its formation is closely related to the cause, extent and location of the injury, so there are many ways to classify them; with the aim of standardizing the treatment path, keloid scars can be divided into four major categories according to the different treatment means: fresh keloid scars, old keloid scars, proliferative keloid scars, keloid discoloration and discoloration. Scar treatment methods There are many scar treatment methods, but all of them have limitations, and no single method can solve all the problems of scar; facing the complexity of scar lesions, there are more and more treatment options, and the combination of multiple methods is the trend of scar treatment development; mainstream treatment methods: ion beam therapy, laser photon therapy, injection therapy, surgical therapy, drug therapy, etc. Ion beam therapy Ion beam therapy is the latest technology in scar treatment, with a wide range of treatment, good efficacy and high safety, not limited by scar area and classification, and can be combined with multiple means of treatment, which can rebuild the internal structure of the scar and improve the efficiency of scar treatment. New Technology Ion beam is a new tool in the field of scar treatment and has been clinically proven to be highly effective. Unlike traditional lasers, the treatment is safer and rarely causes side effects. Early intervention of fresh scar, remodeling of old scar, functional improvement of hyperplastic scar, change of scar discoloration and discoloration