May 2007 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Hair can regrow in adult mice's skin after injury, and this regrowth doesn't come from existing hair cells but from skin cells in the wound, with Wnt7a protein helping this process. This could help treat baldness and scarring.
19 citations
,
May 2016 in “Aging Cell” Older people's sweat glands are less effective at helping skin wounds heal due to weaker cell connections.
Transplanted rat hair follicles grew hair and had increased but not fully restored nerve connections in mice.
January 2024 in “Advanced Science” New microspheres help heal skin wounds and regrow hair without scarring.
4 citations
,
May 2019 in “Journal of The European Academy of Dermatology and Venereology” Hair loss treatment caused more hair loss in a man.
Facial hair transplants now look very natural due to improved techniques.
July 2026 in “World Journal of Advanced Research and Reviews” Scalp necrosis after hair transplant was healed in two weeks with wound care and light therapy.
14 citations
,
February 2007 in “The Journal of Bone and Joint Surgery” A baby's toe was saved from serious damage by quickly removing a hair wrapped tightly around it.
June 2021 in “The Journal of Family Practice” A 69-year-old woman has a fast-growing hand lesion that didn't improve with salicylic acid.
7 citations
,
December 1987 in “Fertility and sterility” The vellus index is a simple, quick, and reliable method to assess and monitor hair growth, especially in hirsutism.
September 2020 in “Advances in anatomic pathology” A woman's large nose growth was initially misdiagnosed, but later confirmed to be giant rhinophyma after full removal and examination.
June 2026 in “Journal of Cutaneous and Aesthetic Surgery” Eyebrow transplants can improve looks and confidence but may have risks like scarring and uneven growth.
13 citations
,
January 2014 in “Aesthetic Surgery Journal” Cyperus rotundus oil effectively reduces unwanted hair without side effects.
February 2024 in “Curēus” Prompt diagnosis and treatment of hair tourniquet syndrome involving the uvula are crucial to prevent severe complications.
18 citations
,
January 2019 in “Experimental Dermatology” Certain cells outside the hair follicle's bulge area can quickly regenerate damaged hair follicles, potentially helping to reduce hair loss from cancer treatments.
1 citations
,
March 2015 in “Journal of Cutaneous Medicine and Surgery” Eyebrow hair transplants can regrow after high-dose radiation therapy.
January 1995 in “Skin Cancer” The outer root sheath in hair follicles changes during growth, with different keratinization processes in its layers.
January 2023 in “Skin appendage disorders” Hair restoration surgery can change the appearance of hair when examined with a special magnifying tool.
April 2017 in “Journal of Dermatological Science” Certain flavonoids can improve the growth of pigmented hair in mice.
2 citations
,
May 2018 in “Journal of Investigative Dermatology” Mice can regrow hair on wounds due to specific cell interactions and mechanical forces not seen in rats.
3 citations
,
June 1979 in “The Journal of Dermatology” Glycosaminoglycan levels peak early in hair growth and decrease as the cycle progresses.
96 citations
,
February 2002 in “Journal of the American Academy of Dermatology” Pseudofolliculitis barbae is a chronic skin condition affecting mainly African American and Hispanic individuals, caused by shaving tightly curled hair, and managed by prevention and treatment but not curable.
December 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Microneedling may help eyebrow hair growth, but more research is needed.
3 citations
,
March 2022 in “Polymers” Substances from Ascidian tunics might help treat hair loss as effectively as Minoxidil.
July 2014 in “European Journal of Cancer” p14ARF and p16Ink4a cause hair follicle stem cell aging and dysfunction.
October 2023 in “Facial Plastic Surgery” FUE hair restoration is generally safe but can have complications, especially if done by untrained individuals.
5 citations
,
January 2016 in “International Journal of Trichology” Erlotinib can cause hair loss and texture changes.
4 citations
,
January 2011 in “Dermatology” A patient grew extra hair on their ears after treatment for testicular cancer, possibly due to hormonal changes or genetics.
23 citations
,
July 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle bulge cells don't help skin regrow after glucocorticoid damage; interfollicular epidermis cells do.