30 citations
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July 2004 in “Fertility and Sterility” Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.
9 citations
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December 1987 in “European journal of endocrinology” The treatment significantly reduced hair growth and male hormone levels in hirsute women.
7 citations
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January 2022 in “Case Reports in Endocrinology” Ovarian hyperthecosis can cause symptoms even with normal testosterone levels, and surgery can improve these symptoms.
9 citations
,
March 2023 in “GeroScience”
September 2008 in “Fertility and Sterility” Free fatty acids may increase androgen production, potentially contributing to polycystic ovary syndrome.
July 2026 in “Journal of Ovarian Research” 25 citations
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September 1977 in “Journal of Toxicology and Environmental Health” High doses of some contraceptive steroids cause health issues in dogs, but their relevance to humans is unclear.
6 citations
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April 2009 in “Fertility and Sterility” Finasteride helps induce ovulation in nonresponder PCOS women.
September 2019 in “Mağallaẗ Tikrīt li-l-ʻulūm al-ṣirfaẗ” Women with PCOS have higher levels of certain hormones compared to healthy women, and these levels vary with BMI, age, and treatment type.
Oral contraceptives can affect skin and hair, improve acne, but may cause pigmentation, dermatitis, and other conditions.
December 2025 in “Egyptian Journal of Basic and Applied Sciences” FOXA1 and CCL2 genes are more active in women with PCOS, varying by phenotype.
120 citations
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November 2014 in “Biological Reviews” The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.
January 2022 in “Figshare” Melatonin affects when and how certain genes work during the growth of goat hair follicles.
October 2020 in “Medicine - Programa De Formación Médica Continuada Acreditado” Female hyperandrogenism is a condition caused by too much male hormones, leading to skin issues and ovulation problems, often due to Polycystic Ovary Syndrome, and is treated based on individual symptoms.
7 citations
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June 2015 in “The anatomical record” Hexi cashmere goats' hair growth varies by stage, with Hoxc13 linked to hair activity.
January 2022 in “Figshare” Melatonin affects when and how certain genes work during the growth of goat hair follicles.
34 citations
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May 2013 in “Journal of the European Academy of Dermatology and Venereology” Hair growth slows and shedding increases after childbirth, but most women don't experience excessive hair loss.
July 2024 in “Journal of the ASEAN Federation of Endocrine Societies” In post-menopausal women, signs of increased male hormones should be checked for possible ovarian cancer.
January 2008 in “农业科学与技术(英文版)” Higher estradiol levels slow cashmere goat hair growth.
October 1995 in “Pediatric Research”
1 citations
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February 2022 in “Case reports in endocrinology” An unusual growth of Leydig cells in a woman's ovaries caused her excessive hair growth, which was treated successfully with surgery.
April 2023 in “Elsevier eBooks” PCOS is a hormonal disorder causing symptoms like excess hair, acne, irregular periods, and fertility issues.
November 2025 in “Asian Journal of Medical Sciences” Early menarche may indicate higher risk of severe hirsutism in PCOS patients.
April 2020 in “Journal of the Endocrine Society” A woman's severe hirsutism was caused by Leydig cell tumors in her ovaries, which improved after surgery.
3 citations
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February 1992 in “Journal of veterinary medicine. Series A” The farm-raised blue fox had a delayed winter coat cycle and abnormal hormone levels, but its hair growth and hormone changes were still linked.
27 citations
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May 1976 in “PubMed” Ovarian wedge resection helped regulate menstrual cycles but didn't significantly change hormone levels or hair growth in polycystic ovary syndrome.
61 citations
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January 2017 in “Human Reproduction Open” The review recommends hormone replacement therapy for women with premature ovarian insufficiency to manage symptoms and protect health, with specific approaches for different groups.
53 citations
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January 1985 in “Acta obstetricia et gynecologica Scandinavica” Low-dose oral contraceptives reduced hair growth and testosterone levels in women with polycystic ovary syndrome.
May 2025 in “Journal of the ASEAN Federation of Endocrine Societies” Thorough evaluation is crucial for postmenopausal women with virilization to detect rare ovarian tumors.
September 2024 in “International Journal of Molecular Sciences” High doses of testosterone disrupt hormone levels and receptor expression in the uterus, affecting fertility.