Research progress of scar repair and its influence on physical and mental health.

A scar is a normal and an inevitable physiological response to the natural healing process of wounds or trauma in the human body. The essence of scar is a kind of abnormal and unsound tissue that does not possess the structure, physiological function and vitality of normal skin tissue. Scars not only affect the beauty of the body surface, but also impede the physiological function of the related tissues and organs, and even lead to deformities. Therefore, scar repair is of great significance to patients' appearance, physiological function as well as physical and mental health. Currently, the main approaches for scar repair in clinic are photorejuvenation or fruit acids. The purpose of this study is to investigate the current research progress of scar repair and the impact of scar repair on the physical and mental health of patients.