How long does the proliferative and reparative phase last?

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Multiple Choice

How long does the proliferative and reparative phase last?

In wound healing, the proliferative and reparative phase is when new tissue is formed to fill and repair the wound. Fibroblasts synthesize collagen, granulation tissue fills the gap, new blood vessels grow, the wound begins to contract, and epithelial cells migrate across the surface. This activity primarily occurs from about day 3 to day 21 after injury, with the bulk completed by around three weeks. After this window, the remodeling (maturation) phase takes over, reorganizing collagen and strengthening the tissue over a longer period. So the duration is up to 21 days. Shorter (about 7 days) doesn’t allow full granulation and collagen deposition, while longer time frames belong to remodeling rather than proliferative/reparative activity.

In wound healing, the proliferative and reparative phase is when new tissue is formed to fill and repair the wound. Fibroblasts synthesize collagen, granulation tissue fills the gap, new blood vessels grow, the wound begins to contract, and epithelial cells migrate across the surface. This activity primarily occurs from about day 3 to day 21 after injury, with the bulk completed by around three weeks. After this window, the remodeling (maturation) phase takes over, reorganizing collagen and strengthening the tissue over a longer period. So the duration is up to 21 days. Shorter (about 7 days) doesn’t allow full granulation and collagen deposition, while longer time frames belong to remodeling rather than proliferative/reparative activity.

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