What is the function of granulation tissue in wound healing?

Granulation tissue plays a crucial role in the process of wound healing. It serves as a temporary matrix that fills the wound defect and provides a scaffold for the migration of cells involved in further healing. This newly formed tissue is rich in blood vessels, which supply necessary nutrients and oxygen to the area, facilitating the healing process. The presence of granulation tissue indicates that the wound is moving into the proliferative phase of healing, where new tissue formation is essential for closure of the wound. Additionally, granulation tissue contains fibroblasts and macrophages, which are essential for collagen production and for clearing away debris and bacteria, thus creating an optimal environment for healing.

While the other functions listed, like preventing infection and reducing pain, may be secondary benefits associated with the presence of granulation tissue, the primary and most recognized function is its role in filling the wound defect with new tissue and providing the necessary support for ongoing healing. The creation of a scar is a later stage in the healing process and does not relate directly to the function of granulation tissue itself.