[Status of diagnosis and treatment of hypertrophic scar and keloid]

In recent years, many high-quality studies have been conducted on the pathomechanism and treatment of hypertrophic scar and keloid. This article briefly summarizes the status in these two aspects. Hypertrophic scar and keloid belong to pathological scar, which is characterized by fibrous dysplasia of reticular layer of dermis. This abnormal hyperplasia is due to the chronic inflammatory reaction in the dermis caused by injury. Some risk factors affect the process and outcome of the scar by increasing the intensity and duration of the inflammatory reaction. It is effective to understand the relevant risk factors to conduct patient education and prevent the occurrence of pathological scars. In view of these risk factors, a comprehensive treatment system, including multiple methods, has been established. Recent high-quality clinical research has provided evidence-based medical evidence for these treatments and prevention methods, which has confirmed the effectiveness and safety of the system.