⚙️ how
How does the skin heal after a cut?
Human BodySkin
Quick Answer
Skin healing happens in stages: clotting, inflammation, new tissue growth, and remodeling. Small cuts often seal in days, while deeper wounds can take weeks or longer.
The Full Story
When skin is cut, blood vessels narrow and clotting proteins help form a scab to stop bleeding. Immune cells then clean the wound by removing bacteria and damaged tissue. Next, skin cells divide and migrate across the wound while new blood vessels grow in to supply oxygen and nutrients. Finally, collagen is reorganized during remodeling, which can continue for months and leaves a scar if the wound was deep enough. Healing is a carefully coordinated repair process, not just the skin “closing up.”
Key Facts
1.Healing has four main stages: clotting, inflammation, growth, remodeling
2.Scars form when deeper tissue is repaired with collagen
3.Remodeling can continue for months
YouTube Angle
Suggested video title for this topic:
"What really happens under a scab?"