Why do we sometimes get long-term scars for minor wounds or even scratches? Like I still have a scar on my knee from a minor scratch on a fence 8+ years ago? Or a very visible scar was left behind from a shallow dog scratch from a year ago? I just always think of scars as something that comes from more major wounds or is that a made up thing?
In: Biology
Damage is damage. Big or small. If you zoom in on glass using a microscope and hit it lightly with a spoon, you can see micro cracks start to form.
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