38 citations
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February 2002 in “British journal of dermatology/British journal of dermatology, Supplement” Two patients with porphyria cutanea tarda experienced their grey hair turning dark again.
March 2021 in “International Journal of Clinical Dermatology & Research” Dupilumab can help regrow hair in alopecia areata but stopping it may cause hair loss again.
March 2013 in “Reactions Weekly” A man's fertility improved after he stopped taking finasteride but worsened again when he restarted the medication.
46 citations
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April 1971 in “American Journal of Clinical Nutrition” Lack of protein causes hair root damage, but it can be reversed by eating protein again.
40 citations
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May 1987 in “The Lancet” Minoxidil helps some bald men, but most lose hair again when stopping.
19 citations
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November 2001 in “Journal of Investigative Dermatology Symposium Proceedings” Human hair follicles can regenerate and recover after severe injury by going through a brief abnormal resting phase before growing again.
8 citations
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March 2022 in “BMC Geriatrics” Older men and those with a history of skin cancer have a higher risk of getting skin cancer again.
January 2003 in “Reactions Weekly” Lowering the dose of cyclosporin caused hair loss that didn't improve even when the dose was increased again.
273 citations
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May 2017 in “The Lancet” Some drugs can cause rare but potentially deadly skin reactions, and early treatment and avoiding the drug again are key.
7 citations
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April 2007 in “PubMed” Finasteride, a hair loss drug, caused a skin rash that went away when the drug was stopped and returned when used again.
3 citations
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February 2022 in “Journal of Infection” People with no symptoms or mild COVID-19 have lower antibody levels, increasing their risk of getting COVID-19 again.
September 2023 in “Dermatology and Therapy” Baricitinib effectively regrows hair in most people with severe alopecia, especially those with patchy hair loss, but hair may fall out again if treatment stops.
February 2023 in “Medical Clinical Update” Some people with alopecia areata, a hair loss condition, get better within a year without treatment, but it can happen again.
January 2016 in “ACG Case Reports Journal” A girl with Rapunzel syndrome had surgery to remove a hairball, and addressing mental health is important to prevent it from happening again.
January 2015 in “VetPharma” Alopecia X causes hair loss in young plush-coated dogs and can be treated with various therapies, but hair may regrow and then fall out again.
A bald man grew hair on his head after taking a drug called diazoxide, but lost it again when he stopped the medication.
23 citations
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October 1971 in “BMJ” Stopping the pill and giving birth both caused hair loss.
1 citations
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October 1971 in “The BMJ” The document suggests that hair loss after stopping birth control may be similar to post-pregnancy hair loss and could recur with future pregnancies.
33 citations
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August 1993 in “FEBS Letters” A new enzyme in rats may help regulate hair growth.
29 citations
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January 2003 in “KARGER eBooks” HVDRR is caused by VDR gene mutations, leading to vitamin D resistance, treatable with high calcium doses, but alopecia remains permanent.
19 citations
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October 1971 in “The BMJ” Anticonvulsant drugs may cause temporary chromosomal abnormalities.
4 citations
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January 1982 in “Neuroendocrinology” Dopamine affects coat color changes in agouti mice.
1 citations
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December 2022 in “BMC Genomics” The Msx2 gene affects feather development in Hungarian white geese and a specific gene variation could indicate feather quality.
378 citations
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September 1998 in “The Journal of Clinical Endocrinology and Metabolism” PCOS affects about 4% of women in the southeastern U.S. equally across Black and White populations.
95 citations
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September 1979 in “Acta Paediatrica” Girls have higher DHEA levels earlier in puberty than boys, indicating earlier development.
58 citations
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July 1974 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Cyproterone acetate combined with ethinyl estradiol significantly reduced hirsutism in women.
41 citations
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January 2006 in “Dermatology” Noncultured epidermal cell transplantation is effective for repigmenting stable vitiligo.
39 citations
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April 2016 in “Case Reports in Dermatology” Tofacitinib temporarily regrew hair in a man with alopecia, but its effects didn't last.
26 citations
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October 2016 in “Case Reports in Dermatology” A man with severe hair loss saw hair and nail improvement after 10 months on tofacitinib without side effects.
26 citations
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August 1995 in “The journal of experimental zoology/Journal of experimental zoology” Melatonin treatment made ferrets grow their fur earlier and affected their breeding time.