Mainly for keloid scars, lesbians are more likely to have keloid scars on the chest and back, especially hyperplastic keloid scars, which are highlighted and mostly accompanied by itching and pain in the breast department of Siping Central Hospital, Zhou Wenjun. Surgical excision for keloid scar healing mostly has recurrence, and it will be bigger than the original scar. Therefore, injection is advocated for the treatment of hyperplastic keloid scars. For 20 patients after the injection with 2 years of follow-up, there was no rebound, and the scar was flattened to the surface skin, in line with the skin color, and relieved the symptoms of itching and pain. Injection treatment, depending on the size of the scar, usually requires 3 to 4 injections. There is no delay after injection and the injection takes only 3 minutes.