Scar hyperplasia is a common scarring disorder. Traumatic stitches, wound infection, and endocrine disorders can all cause scar hyperplasia. Different treatment methods are generally adopted for hyperplastic scars in different parts of the body, which are explained below through specific cases. A patient with a knife wound on her arm was not treated with sutures in time, resulting in a hyperplastic scar of about 10 cm. In view of the patient’s high requirements for appearance recovery, it is recommended to adopt the scar removal program of surgical excision and then super reduction fine suture, and wear a reduction device for about half a year after the removal of the suture after surgery, so as to prevent the wound from widening again or hyperplasia, which is a fine line trace if it heals well, and with proper postoperative care, it can completely achieve the effect that the normal social distance is not obvious. Secondly, this patient’s injury near the nose led to scar hyperplasia, congestion and redness. From the photos, it looks congested and red, still in the hyperplasia phase, and the location is not suitable for excision. It is suggested that early scar softening injection be given, and if necessary, combined treatment with superficial radiotherapy can gradually flatten and soften the scar tissue and make the scar color close to normal skin tone through several treatments. Three This patient suffered a minor trauma two years ago, and then the wound became infected, which eventually led to scar hyperplasia. From the photo, the scar is not very big, but there is a raised hyperplasia, and wearing shorts and skirts in hot weather will really affect the beauty. In this regard, it is recommended that scar softening injections can be given to gradually flatten and soften the scars, which can improve the appearance. If the demand for appearance is higher, the scar removal program of surgical excision with super reduction of fine sutures can be adopted, and there will only be very light and fine traces if the recovery is good. The normal social distance is not obvious. It can be seen from this case that the same belongs to hyperplastic scars, but because the actual situation is different, the course of scar development is different, and the patient’s requirements are different, the treatment plan is often formulated differently. Therefore, it is important to have a careful examination of the scars by a professional doctor and to develop a targeted treatment plan in combination with the situation in order to achieve a good treatment result.