Healing Wounds, Growing Hair

Wound healing in process. Credit: Yaron Fuchs and Samara Brown in the lab of Hermann Steller, Rockefeller University.

Credit: Yaron Fuchs and Samara Brown in the lab of Hermann Steller, Rockefeller University.

Whether injured by a scrape, minor burn or knife wound, skin goes through the same steps to heal itself. Regrowing hair over new skin is one of the final steps. All the hair you can see on your body is non-living, made up of “dead” cells and protein. It sprouts from living cells in the skin called hair follicle stem cells, shown here in red and orange. For more pictures of hair follicle stem cells—and many other stunning scientific images and videos—go to the NIGMS Image and Video Gallery.

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