Hemostasis is the first stage in wound healing that occurs immediately and can last for two days.
When an injury occurs, the initial phase is always an outpouring of lymphatic fluid and blood.
Blood vessels constrict to stop bleeding, called vasoconstriction.
Your body activates its blood clotting system to prevent loss of blood.
INFLAMMATION.
ACTIVITIES
The inflammatory phase begins with hemostasis and chemotaxis.
Inflammation both controls bleeding and prevents infection.
The fluid engorgement allows healing and repair cells to move to the site of the wound.
During the inflammatory phase, damaged cells, pathogens, and bacteria are removed from the wound area.
PROLIFERATION
ACTIVITIES
The proliferative or granulation phase does not occur at a discrete time, but is ongoing all the time in the background.
In the proliferation phase, the provisional wound matrix formed during hemostasis is replaced by granulation tissue.
The fibroblasts have started to lay down new collagen and form the core of the wound to partially recover the structure and function of the wounded skin.
MATURATION
ACTIVITIES
Maturation, or remodeling, is the final phase of wound healing.
This phase involves remodeling of collagen from type III to type I and the wound fully closes.
Cellular activity reduces and the number of blood vessels in the wounded area regress and decrease.