TLDR A 22-year-old's gray hair partially turned back to its original color without known causes.
A 22-year-old Chinese male experienced partial reversal of canities, which is typically a progressive and permanent graying of hair associated with aging. The document discussed that premature canities could be linked to genetic factors, autoimmune disorders, nutritional deficiencies, or certain drugs. While graying is generally irreversible, exceptions include repigmentation linked to conditions like alopecia areata and vitiligo. This case highlighted an unusual instance of hair repigmentation in the absence of these conditions.
189 citations
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May 1991 in “Medical Entomology and Zoology”
148 citations
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December 2018 in “Journal of autoimmunity” Alopecia areata is an autoimmune disease causing patchy hair loss, often with other autoimmune disorders, but its exact causes are unknown.
4 citations
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November 2018 in “JAAD case reports” Alopecia areata can sometimes appear as a straight line of hair loss instead of round patches.
May 2018 in “Journal of cosmetology & trichology” Combining platelet-rich plasma therapy with prostaglandin-F eye drops can significantly regrow hair in alopecia universalis.
110 citations
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December 2013 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Alopecia areata is a genetic and immune-related hair loss condition that is often associated with other autoimmune diseases and does not typically cause permanent damage to hair follicles.
