12 citations
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June 2006 in “Anais Brasileiros de Dermatologia” The study found average numbers for different types of hair follicles in the scalp and observed differences between men and women, suggesting reasons for more common hair shedding in women.
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.
Nipple area expansion in mice needs both pregnancy hormones and mechanical strain.
7 citations
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November 2018 in “Journal of the American Academy of Dermatology” White hairs often regrow in alopecia areata patches.
January 2021 in “Hair therapy & transplantation” Telogen effluvium causes temporary hair loss, but new hair still grows.
10 citations
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December 2010 in “British Journal of Dermatology” After menopause, some women lose scalp hair and gain facial hair, with patterns suggesting different underlying causes.
83 citations
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February 1977 in “PubMed” Increasing light exposure in winter can make mares ovulate and cycle earlier.
14 citations
,
August 2006 in “Clinical and Experimental Dermatology” A girl with no hair neglect developed plica neuropathica in the hospital, lost all her hair, but it grew back.
10 citations
,
October 2002 in “Journal of The American Academy of Dermatology” The document concludes that a man's long hair may have helped diagnose his rare case of chronic hair shedding, for which no treatment is advised.
March 2015 in “CRC Press eBooks” Telogen effluvium is a type of hair loss in women caused by many factors, and iron and thyroid tests are recommended for diagnosis.
12 citations
,
January 2009 in “Gynecological Endocrinology” A postmenopausal woman's hair loss and excess hair growth improved after surgery for ovarian hyperthecosis.
May 2025 in “Health Science Reports” Serum WS Biotin significantly reduces hair shedding and improves hair thickness.
3 citations
,
July 2019 in “Journal of Cosmetic Dermatology” New shampoo with tyramine hydrochloride reduces hair loss by making a small muscle in the hair follicle contract.
24 citations
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August 2020 in “AJGP” A woman's sudden hair loss was linked to her previous COVID-19 infection.
40 citations
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September 2017 in “F1000Research” Oral minoxidil effectively reduces hair shedding in women with CTE, with no major side effects.
October 2025 in “Brazilian Journal of Hair Health” Hair loss from weight-loss treatments is usually temporary and reversible.
The document concludes that severe trauma can cause temporary hair loss, known as Telogen Effluvium, which usually resolves without treatment.
September 2023 in “Cutis” A baby girl has a hair disorder called monilethrix, causing fragile hair that may improve over time.
September 2021 in “CRC Press eBooks” Pregnancy can cause normal skin changes, including darkening of certain areas, nail changes, vascular changes, and breast changes like stretch marks.
January 2023 in “Our Dermatology Online” Most pregnant women experience skin changes, especially increased pigmentation.
18 citations
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June 2008 in “Archives of Dermatology” Men typically shed about 10 hairs in 60 seconds, and this amount doesn't increase with age.
19 citations
,
June 2006 in “Physiology & Behavior” Finasteride slows down motherly behavior in first-time pregnant rats.
1 citations
,
October 1978 in “The Journal of Pediatrics” Distal hair cortisol is not a reliable measure of early pregnancy cortisol levels.
January 2017 in “Faculty of 1000 Research Ltd” Oral minoxidil significantly reduces hair shedding in women with chronic telogen effluvium.
1 citations
,
January 2000 in “Springer eBooks” Pregnancy can cause various skin changes and diseases, requiring careful treatment to protect the baby.
A woman had temporary hair loss due to stress from a spinal cord injury.
7 citations
,
April 2013 in “Animal Production Science” Altering maternal cortisol during pregnancy can improve wool growth in Merino sheep.
11 citations
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January 2018 in “Annals of Dermatology” Some people experienced temporary hair loss after hair transplant surgery but recovered fully within 10 months.
69 citations
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March 1993 in “Archives of Dermatology” The document says there are five types of hair loss conditions and different causes, including drugs.