Understanding the four phases—hemostasis, inflammation, maturation, and remodeling—is important to understanding how to approach the wound and develop a comprehensive care plan The skin consists of three main layers: epidermis, dermis, and subcutaneous tissue.

Each layer and its sublayers play an integral part in the external and internal roles of the skin Regardless of wound etiology, all wounds undergo the same biological repair process, which consists of four phases

inflammation — second phase of wound healing, characterized by the movement of white blood cells to the wound bed. remodeling — final phase of wound healing, characterized by regrowth and reorganization of collagen. pressure injury — localized damage to the skin and underlying soft tissue, typically over a bony prominence or the site upon which a medical device was placed. surgical debridement — use of a scalpel, forceps, curette, scissors, or other instruments to remove necrotic tissue from the wound base; also known as sharp debridement.