157 citations
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May 2016 in “Plastic and reconstructive surgery/PSEF CD journals” Facial feminization surgery is safe and patients are satisfied, but more detailed research is needed.
April 2016 in “The FASEB Journal” Blocking androgen receptors early in life increases estrogen levels and reduces sexual motivation in male rats.
6 citations
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April 2019 in “Endocrinology and Metabolism Clinics of North America” Testosterone therapy for transmasculine individuals is generally safe with medical supervision, improves mental health, and has mixed effects on physical health.
January 2024 in “JEADV clinical practice” Gender-affirming dermatology treatments generally improve mental well-being for transgender individuals, but more research is needed.
5 citations
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September 2022 in “Facial Plastic Surgery & Aesthetic Medicine” Facial feminization surgery helps make facial features more feminine, improving patient satisfaction and safety.
54 citations
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November 1995 in “The Journal of Clinical Endocrinology & Metabolism” Females with 5 alpha-reductase-2 deficiency have less body hair, no acne, normal fertility, and delayed menarche.
22 citations
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September 1994 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride reduces dihydrotestosterone, increases testosterone, and may treat hirsutism in women.
July 2025 in “Reproductive Biology and Endocrinology” Early androgen exposure affects hormone receptor expression in adult female rats' brains, but not in males.
Finasteride causes reproductive changes in male rats.
September 2025 in “Medicine & Science in Sports & Exercise” Gender-affirming hormone therapy and surgery affect gut bacteria differently.
October 2024 in “Journal of the Endocrine Society” Estrogen alone may effectively suppress testosterone in some transfeminine individuals.
17 citations
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September 2013 in “The International Journal of Neuropsychopharmacology” 9 citations
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July 2023 in “Hypertension” Gender-affirming hormone therapy may increase heart disease risk in transgender individuals.
3 citations
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March 2022 in “Transgender Health” More research is needed to improve lower body gender affirmation techniques.
Finasteride worsens alcohol withdrawal in female mice but eases it in male mice.
November 2017 in “JAMA internal medicine” Women also use 5α-reductase inhibitors for hair loss and hirsutism.
1 citations
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August 2019 in “Environmental Toxicology” Exposure to low doses of finasteride in the womb causes changes in the prostate of both male and female gerbils.
51 citations
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August 2012 in “Differentiation” Mouse genital development depends on male or female hormones for specific features.
8 citations
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August 2015 in “Endocrine”
January 2024 in “Biology of sex differences” Dihydrotestosterone makes arteries stiffer in female mice by reducing estrogen receptor expression.
Finasteride affects prostate development differently in male and female Mongolian gerbils.
105 citations
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June 2010 in “The journal of sexual medicine” Testosterone undecanoate increases lean mass and causes various physical changes in female-to-male transsexuals.
25 citations
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September 2014 in “Pharmacotherapy” Hormone therapy can improve mental health and quality of life for people with gender dysphoria, but long-term effects need more research.
204 citations
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May 2014 in “The Journal of Sexual Medicine” Hormone therapy for trans individuals is effective and generally safe in the short term.
71 citations
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August 2019 in “The journal of sexual medicine” Testosterone treatment effectively causes male physical development in transgender male adolescents but may lead to side effects like acne, higher BMI and blood pressure, lower good cholesterol, and decreased bone density.
January 2026 in “Endocrinology”
1 citations
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October 2017 in “Elsevier eBooks” Antiandrogens can treat female hormonal conditions, but environmental ones may harm reproductive health.
September 2024 in “International Journal of Molecular Sciences” High doses of testosterone disrupt hormone levels and receptor expression in the uterus, affecting fertility.
October 2024 in “Journal of the Endocrine Society” Estrogen alone can lower testosterone in some transfeminine people.
25 citations
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June 2023 in “Biomedicines” Men generally face more severe COVID-19 outcomes than women, partly due to hormonal differences.