37 citations
,
August 2009 in “Journal of the American Academy of Child & Adolescent Psychiatry” Trichotillomania is a chronic hair-pulling disorder that starts in early teens and causes distress and hair loss.
34 citations
,
September 2019 in “Clinical, Cosmetic and Investigational Dermatology” Light therapy can stimulate hair growth and is more effective when started early, but more research is needed on its long-term effects and optimal use.
33 citations
,
May 2018 in “Stem Cell Reports” Krt15+ cells in the mouse intestine resist radiation and can start tumors.
29 citations
,
April 2020 in “Journal of Tissue Engineering and Regenerative Medicine” The experiment showed that human skin grown in the lab started to form early hair structures when special cell clusters were added.
28 citations
,
November 2012 in “Experimental dermatology” A protein complex called mTORC1 likely affects when hair growth starts in mice.
28 citations
,
May 2012 in “Veterinary Dermatology” Different types of dog hair loss are linked to problems starting the hair growth phase and early hair cycle ending.
25 citations
,
December 2021 in “Journal of Medical Virology” COVID-19 can cause a type of hair loss that usually starts 74 days after infection, affecting mostly women, but most patients eventually recover.
25 citations
,
June 2004 in “Journal of Investigative Dermatology” Macrophage-stimulating protein helps hair grow and can start hair growth phase in mice and human hair samples.
21 citations
,
July 2011 in “Journal of the American Academy of Dermatology” A man developed a rash similar to pityriasis rubra pilaris after starting sorafenib for cancer, possibly due to the drug's effect on skin cells.
18 citations
,
November 1998 in “Comparative biochemistry and physiology. Part A, Molecular & integrative physiology” Changes in prolactin and DHEA levels are not required for the start of mink hair growth cycles.
12 citations
,
June 2005 in “Journal of the European Academy of Dermatology and Venereology” A man with HIV developed skin and hair issues after starting HIV treatment, which improved with topical treatment.
9 citations
,
February 2020 in “Stress” Children with lower inhibitory control experience more stress when starting third grade.
7 citations
,
December 2013 in “The Journal of Dermatology” A woman's hair turned gray and fell out after starting a cancer drug called imatinib mesylate.
5 citations
,
January 2001 in “Journal of dermatological science” The G(S) alpha subunit gene may help start hair follicle growth in newborn mice.
4 citations
,
August 2017 in “International journal of molecular sciences” The conclusion is that Pigmented Epithelioid Melanocytoma can start from hair follicle stem cells or from a mole on the skin.
3 citations
,
April 2021 in “Revista da Sociedade Portuguesa de Dermatologia e Venereologia” Some people who got COVID-19 experienced temporary hair loss starting around 10 weeks after infection, with many seeing improvement within about 25 days.
2 citations
,
June 2005 in “Clinical Oncology” A man's bald spot grew hair after starting cancer treatment with gefitinib.
1 citations
,
July 2025 in “Genetics Selection Evolution” Nerve cells and other cell types work together to start horn growth in dairy goats.
1 citations
,
April 2022 in “JAAD case reports” A woman developed a rare scalp condition after starting minoxidil, which was resolved with specific shampoo and solution.
1 citations
,
September 2021 in “Frontiers in Endocrinology” Minoxidil can help transgender males grow facial hair before starting testosterone therapy.
1 citations
,
August 2016 in “Journal of Investigative Dermatology” Activating STAT5 in the skin's dermal papilla is key for starting hair growth, regenerating hair follicles, and healing wounds.
1 citations
,
July 2014 in “International Journal of Dermatology” A cancer patient developed a type of hair loss after starting a cancer drug called vandetanib.
1 citations
,
June 2006 in “Experimental dermatology” The conclusion suggests that early signs of hidradenitis suppurativa may start in the hair follicle, with genetic and immune factors playing a role, highlighting the need for more research on the hair follicle's immune system.
April 2026 in “Frontiers in Cell and Developmental Biology” Hair cell loss usually happens after hearing loss starts.
November 2023 in “Journal of Investigative Dermatology” EGFR-targeted cancer therapy can cause skin issues starting at hair follicles, leading to inflammation.
September 2022 in “JAMC. Journal of Ayub Medical College, Abbotabad, Pakistan/Journal of Ayub Medical College” A boy with a rare skin condition improved quickly after starting zinc supplements.
March 2022 in “Brazilian Journal of Health Review” COVID-19 can cause a type of hair loss that usually starts 3-6 months after the illness, and treatment includes stress reduction and hair care products like Minoxidil.
February 2020 in “Journal of chemical neuroanatomy” Researchers found a way to make rat hair follicle cells start turning into motor neuron-like cells, but couldn't fully turn them into working motor neurons.
January 2019 in “Clinical neuropharmacology” A girl's hair-pulling condition improved greatly after she started vitamin D treatment.
April 2016 in “Journal of The American Academy of Dermatology” The study found that Temporal Triangular Alopecia often starts in early childhood, while Folliculitis Decalvans is characterized by tufted hairs and redness around hair follicles.