What is the role of vitamin A in wound healing?

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Multiple Choice

What is the role of vitamin A in wound healing?

Vitamin A supports wound healing by promoting epithelialization—the growth and migration of skin cells to cover the wound surface. When epithelial cells can proliferate and move across the wound bed, the wound closes and the barrier is restored. This direct effect on re-epithelialization makes wound closure the most recognizable outcome of adequate vitamin A during healing. While vitamin A also helps regulate inflammation and can influence remodeling, its key impact in this context is speeding closure through epithelialization rather than primarily acting as an antioxidant or driving collagen formation.

Vitamin A supports wound healing by promoting epithelialization—the growth and migration of skin cells to cover the wound surface. When epithelial cells can proliferate and move across the wound bed, the wound closes and the barrier is restored. This direct effect on re-epithelialization makes wound closure the most recognizable outcome of adequate vitamin A during healing. While vitamin A also helps regulate inflammation and can influence remodeling, its key impact in this context is speeding closure through epithelialization rather than primarily acting as an antioxidant or driving collagen formation.

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