26 citations
,
November 2011 in “Arquivos Brasileiros De Endocrinologia E Metabologia” Diagnosing PCOS in teenagers should focus on signs of excess male hormones and not rely solely on ovarian ultrasound or irregular periods, and should be reassessed in adulthood.
21 citations
,
January 2020 in “General and Comparative Endocrinology” Lack or blocking of SRD5a, a key component in hormone creation, can lead to conditions like pseudohermaphrodism and affect hair growth, bone mass, muscle strength, and reproductive health. More research is needed on its regulation from fertilization to adulthood.
3 citations
,
May 2014 in “InTech eBooks” Copper deficiency may cause hair loss, and treating it could involve nutrition and hormones.
2 citations
,
January 1975 in “Archives of Dermatological Research” Certain enzymes react strongly with some hormones in rat skin during hair growth, mainly in sebaceous glands and hair sheaths.
December 2023 in “Scientific Reports” Scientists created cell lines from balding patients and found that cells from the front of the scalp are more affected by hormones that cause hair loss than those from the back.
November 2022 in “Journal of the Endocrine Society” A woman's masculine features were caused by a rare ovarian tumor that produced male hormones.
October 2022 in “Linköping University medical dissertations” The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
January 2020 in “International journal of current research and review” Exposure to plastics may increase the risk of irregular menstrual cycles and symptoms of hormone imbalance in teenage girls.
September 2004 in “Experimental dermatology” Melatonin directly affects mouse hair follicles and may influence hair growth.
23 citations
,
March 1998 in “BMJ” Haemochromatosis can cause infertility by affecting hormone glands.
14 citations
,
May 2020 in “Biomolecules & Therapeutics” Vanillic acid from wheat bran may promote hair growth by activating certain cell pathways and reversing hormone-related hair loss.
May 2021 in “Journal of the Endocrine Society” A rare ovarian cancer with a good outlook was found in a woman with unusual hair growth and abdominal symptoms.
77 citations
,
March 2004 in “Human Reproduction” Women with irregular periods and/or excessive body hair are more likely to have polycystic ovaries, and this condition is linked to higher health risks.
56 citations
,
December 2011 in “Steroids” The document suggests treating individuals with nonclassic congenital adrenal hyperplasia who show symptoms, especially those related to excess male hormones.
5 citations
,
June 2018 in “Elsevier eBooks” Testosterone is important for male sexual traits, reproduction, muscle and bone health, blood production, and metabolism, and works both directly and after being changed into other hormones.
5 citations
,
January 1985 in “Archives of Dermatology” Skin creams that block male hormones may help with hair growth, hair loss, and acne.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Hair Booster helps regrow hair by providing essential nutrients to fix internal imbalances.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
Androgenetic alopecia, or hair loss, is caused by a mix of genetics, hormones, and environment, where testosterone affects hair growth and causes hair to become smaller and grow for a shorter time.
3 citations
,
February 2005 in “Aktuelle Dermatologie” Prolactin and TGF-β receptor blockers might help treat hair loss.
August 2021 in “Oxford University Press eBooks” The skin is a complex organ that protects the body, regulates temperature, and has roles in immunity, hormone function, and vitamin D metabolism.
January 2026 in “Biomaterials Research” Targeted nanomodulators can rejuvenate cells and promote hair growth in androgenetic alopecia.
5 citations
,
November 1999 in “Medical Hypotheses” Minoxidil, a common hair loss treatment, might work by counteracting a hormone that reduces hair growth and promotes hair loss.
178 citations
,
October 2001 in “Genes & Development” The mutated hairless gene causes hair loss by acting as a new type of corepressor affecting thyroid hormone receptors.
107 citations
,
December 2013 in “International Journal of Dermatology” The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.
59 citations
,
August 1998 in “International Journal of Dermatology” Genetics and hormones cause hair loss; finasteride treats it safely.
56 citations
,
November 2010 in “Pigment Cell & Melanoma Research” Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.
11 citations
,
March 1991 in “PubMed” Hormonal imbalances, including high prolactin and thyroid issues, contribute to hair growth problems in women.
5 citations
,
May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
4 citations
,
July 2021 in “Dermatology and therapy” Hormone therapy increases facial and body hair in transgender men, while hair removal improves well-being in transgender women, but cost is a barrier as insurance often doesn't cover it. Dermatologists can use various treatments for these hair issues.