Razor bumps and ingrown hairs on the bearded skin are medically referred to as pseudofolliculitis barbae (PFB). Razor Bumps are caused by the end of the hair shaft being cut in such a way, as the hair continues to grow it curls into another nearby hair follicle. This introduction of the sharpened end of a hair follicle into another causes an inflammatory response in the skin and leads to a pimple or bump.
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