What are Scars?

Almost everyone has a scar that tells a story, but have you ever wondered why exactly scars form in the first place?

Warning: There are some graphic images of scars in this episode.

Hosted by: Hank Green
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Sources:
http://www.nhs.uk/conditions/scars/Pages/Introduction.aspx
http://www.ncbi.nlm.nih.gov/books/NBK21582/
http://www.news-medical.net/health/What-is-Collagen.aspx
http://www.webmd.com/skin-problems-and-treatments/scars
http://www.huffingtonpost.com/robert-tornambe-md/scar-treatment-_b_830479.html
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3038392/
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2918339/
http://www.aafp.org/afp/2009/0801/p253.html

Category: SciShow

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