Which phase of wound healing occurs immediately after an injury or incision?

The phase of wound healing that occurs immediately after an injury or incision is the inflammation phase. This initial response is critical as it serves several key functions in the healing process. When an injury happens, the body's immediate reaction is to contain the damage.

During the inflammation phase, blood vessels constrict to minimize blood loss, and then subsequently dilate to allow increased blood flow to the area. This dilation brings essential cells to the site of injury, including white blood cells which are vital for preventing infection. Additionally, the area becomes red, swollen, and warm due to this increased blood flow and the release of inflammatory mediators.

This phase typically lasts for several days and sets the stage for the next phases of wound healing, such as the proliferation phase, where new tissue formation begins, and the maturation phase, where the wound continues to remodel over time. Understanding the inflammation phase is crucial, as it highlights the body’s natural defense mechanism and the initial steps toward recovery.