What are the four phases of healing?

What are the four phases of healing?

• A. Hemostasis and inflammation, Epitheliazation, Proliferation, Remodeling
• B. Inflammation, Proliferation, Maturation, Remodeling
• C. Hemostasis, Epitheliazation, Proliferation, Regression
• D. Clotting, Inflammation, Proliferation, Scarring

Answer: (A)

Wound healing happens in a sequence of stages that build on each other to restore tissue integrity. The first phase focuses on stopping bleeding and starting cleanup of the wound. In this stage, inflammation follows to clear debris and set up the environment for repair. The next step is epithelialization, where skin cells migrate to reestablish the protective surface over the wound. After that comes proliferation, which involves forming new tissue, including granulation tissue, new blood vessels, and collagen deposition to fill the wound. The final phase is remodeling, where the newly formed tissue matures, collagen is reorganized, and scar tissue strengthens over time. This option reflects that progression by pairing the initial hemostatic and inflammatory response, the surface re-epithelialization, the tissue-building proliferative processes, and the long-term remodeling that improves tensile strength. The other choices mix in or omit key elements (for example, they misplace epithelialization, split phases oddly, or treat scarring as a separate phase), making this sequence the best match for how healing unfolds.

Wound healing happens in a sequence of stages that build on each other to restore tissue integrity. The first phase focuses on stopping bleeding and starting cleanup of the wound. In this stage, inflammation follows to clear debris and set up the environment for repair. The next step is epithelialization, where skin cells migrate to reestablish the protective surface over the wound. After that comes proliferation, which involves forming new tissue, including granulation tissue, new blood vessels, and collagen deposition to fill the wound. The final phase is remodeling, where the newly formed tissue matures, collagen is reorganized, and scar tissue strengthens over time.

This option reflects that progression by pairing the initial hemostatic and inflammatory response, the surface re-epithelialization, the tissue-building proliferative processes, and the long-term remodeling that improves tensile strength. The other choices mix in or omit key elements (for example, they misplace epithelialization, split phases oddly, or treat scarring as a separate phase), making this sequence the best match for how healing unfolds.