How Does a Cut Heal? Science for Kids

Ages 5–10 | How does a cut heal? You scrape your knee, and a few days later a scab appears and the cut starts closing.

But how does your body even know where the damage is?

Why does a scab form, and what's happening underneath it?

Where does the new skin come from?

And why does a healing cut sometimes itch?

Your body is doing a lot more repair work than you can see.

And even when the cut looks healed, it may not be finished yet.

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The skinny

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