Applying thyroid hormones to the scalp can help hair grow.
26 citations
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January 1993 in “Dermatology” A rare case of isolated trichothiodystrophy was identified, marked by brittle hair with low sulfur content.
August 2021 in “Pediatrics in review” The girl's hirsutism and menstrual issues were caused by a benign ovarian tumor, which was successfully removed.
42 citations
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July 2010 in “European Journal of Cell Biology” Thyroid hormones affect hair follicle stem cells by promoting differentiation and reducing growth.
17 citations
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April 1997 in “Archives of dermatology” The document describes a treatment for excessive hair growth in a teenage girl using medication and birth control, but does not report the results.
5 citations
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January 1984 in “Journal of psychosomatic obstetrics and gynecology/Journal of psychosomatic obstetrics and gynaecology” The treatment reduced hair growth and testosterone in women with excess hair and had some effects on stress responses.
January 2006 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature”
2 citations
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June 2014 in “مجلة مركز بحوث التقنيات الاحيائية” Five different TPO gene mutations were found in PCOS patients with thyroid hormone issues.
12 citations
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May 2009 in “Ophthalmic plastic and reconstructive surgery” Multiple pilomatrixoma may indicate Turner syndrome.
May 2021 in “Journal of the Endocrine Society” A woman developed male characteristics after using unregulated hormone therapy.
April 2023 in “Rossijskij žurnal kožnyh i veneričeskih boleznej” The document concludes that four related skin diseases, which often occur together, are caused by blocked hair follicles.
July 2025 in “Journal of Investigative Dermatology” Androgens reduce THY1 in skin cells, leading to less fat, more fibrosis, and worse healing in males.
September 2016 in “Journal of Dermatological Science” Björnstad syndrome causes twisted hair from birth.
354 citations
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August 1991 in “Molecular Endocrinology” Human adrenals and gonads have a unique enzyme for steroid hormone production.
3 citations
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January 2022 in “Burns & Trauma” CTHRC1 helps sweat glands recover by rebuilding nearby blood vessels.
September 2023 in “Repository of the University of Primorsk (University of Primorska)” Following national healthy eating guidelines can help reduce risks from gender-affirming hormone therapy.
52 citations
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May 2003 in “The journal of investigative dermatology/Journal of investigative dermatology” Parathyroid hormone-related protein helps control hair growth phases in mice.
3 citations
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January 2020 in “International journal of trichology” Congenital triangular alopecia is a hair loss condition present from birth or early childhood with no effective treatment needed.
1 citations
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October 2002 in “The Journal of Urology” 8 citations
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January 2014 in “Indian Dermatology Online Journal” Trichostasis spinulosa is a common but often unnoticed skin condition involving bundled vellus hairs, especially in people with darker skin or UV exposure.
January 2026 in “Endocrinology” 12 citations
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March 2021 in “Journal of Investigative Dermatology” TRPM5 is crucial for maintaining hair growth.
1 citations
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January 1985 in “Protides of the biological fluids” Injecting monocyto-angiotropin into hare skin increases hair growth by forming new blood vessels.
33 citations
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May 2006 in “Journal of Investigative Dermatology” PTHrP and its receptor can control blood vessel growth and hair development in mouse skin.
August 2022 in “Archives of pediatric surgery” Hair-Thread Tourniquet Syndrome is a rare condition where hair or thread tightly wraps around a child's body part, requiring quick treatment to prevent damage.
A 22-year-old woman with a rare genetic condition was successfully treated to develop normal female characteristics and regular menstruation.
April 1999 in “Therapeutische Umschau” Hair loss and excessive growth treated with various options, including new laser technology.
January 2015 in “International Journal of Research in Medical Sciences” A patient with HAIR-AN syndrome, PCOS, and Hashimoto's thyroiditis improved with early diagnosis and treatment to prevent serious health problems.
24 citations
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September 2014 in “Journal of the European Academy of Dermatology and Venereology” Trichoscopy is reliable for diagnosing Temporal Triangular Alopecia and can prevent unnecessary biopsies and wrong treatments.
56 citations
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April 2019 in “The Plant Journal” Cyclic nucleotide-gated channels are crucial for proper root hair growth and calcium balance in plants.