How do scars form?

It’s hard to escape childhood without racking up a few scars. Why do these leftover reminders of a painful cut or crash look different from the rest of our skin? And why do they stick around for so long after the incident that caused them? Sarthak Sinha explains how scars form.

TED ED: Lesson by Sarthak Sinha, animation by Karrot Animation.

How A Wound Heals Itself

Our skin is the largest organ in our bodies, with a surface area of about 20 square feet in adults. When we are cut or wounded, our skin begins to repair itself through a complex, well-coordinated process. Sarthak Sinha takes us past the epidermis and into the dermis to investigate this regenerative response.

TED ED: Lesson by Sarthak Sinha, animation by Karrot Animation.

https://www.patreon.com/teded