Phases of Wound Healing
The Inflammatory Phase (1-5 days) is the body’s natural response to injury. After initial wounding, the blood vessels in the wound bed contract and a clot is formed. Once haemostasis has been achieved, blood vessels then dilate to allow essential cells; antibodies, white blood cells, growth factors, enzymes and nutrients to reach the wounded area.
During Proliferation Phase (2-21 days), the wound is ‘rebuilt’ with new granulation tissue which is comprised of collagen and extracellular matrix and into which a new network of blood vessels develop, a process known as 'angiogenesis'.
Maturation (3 weeks to 2 years) is the final phase and occurs once the wound has closed. This phase involves re-modelling and realignment of collagen creating a more plump dermis. Scar tissue is flattened, and the epidermal layer becomes more dense.