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 ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn t make SciShow without them! Shout out to Justin Ove, Accalia Elementia, Kathy & Tim Philip, Kevin Bealer, Justin Lentz, Fatima Iqbal, Linnea Boyev, Tomasz Jonarski, Chris Peters, Philippe von Bergen, Will and Sonja Marple, and Mark Terrio-Cameron. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- 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