3-year-old girl suffers devastating consequences from her father’s ‘gender transition’ –

Mon Jul 21, 2025 – 11:20 am EDTMon Jul 21, 2025 – 11:57 am EDT
(LifeSiteNews) — The European Society for Paediatric Endocrinology has published what may be one of the most horrifying transgender case studies I have yet seen. Titled “Peripheral Precocious Puberty due to Exogenous Estradiol in a 3-Year-Old Girl: A Case Report,” the study describes how the girl’s trans-identifying father caused devastating physical effects in his daughter by exposing her to his transgender “treatments.”
After the father decided that he was a woman, he began taking estradiol gel, referred to in the study as “gender affirming hormone therapy” (or GAHT). The study authors note that “transdermal estrogen in girls with hypogonadism is well known for induction of the puberty,” and that “sexual development due to exogenous exposure for sex steroids in food, environment or medication is known, but sparsely reported.”
After the father began to take hormone treatments, his daughter was exposed to GAHT through skin-to-skin contact. This resulted in “a case of peripheral precocious puberty” in the 3-year-old girl, which produced catastrophic physical consequences.
“A 3-year-old girl was referred to our pediatric outpatient clinic with breast development… over a period of 6 months,” the study states. “The GAHT of her transgender father was estradiol spray 6.12 mg applied to both forearms daily. After 6 months this was changed to estradiol gel 3.75 mg daily for 7 months. The gel was manually applied to the chest, abdomen, shoulders, and thighs. The father reported skin to skin contact on a daily basis.”
“A physical examination of the girl revealed a Tanner stage III for breast and Tanner stage I for” other reproductive “development,” the study continued. “Height was 108.1 cm (+3,2 SD), weight 19.7 kg (+0,54 SD) and bone age advanced to 6.9 years (Greulich and Pyle). Pelvic ultrasound demonstrated increased size for age of both uterus and endometrium corresponding to Tanner stage III-IV. Estradiol was 0.04 nmol/l and GnRH stimulation test revealed a peak LH of 2.0 IU/l with a LH/FSH ratio of 0.77.”
These changes, the study concluded, were as a direct result of exposure to her father’s transgender treatments: “These clinical, radiologic and laboratory findings were consistent with a diagnosis of peripheral precocious puberty due to exogenous estradiol. The hormone therapy of the father was changed from a gel to a transdermal patch, and the girl experienced regression of breast development, normalization of growth velocity, pelvic ultrasound and GnRH stimulation test.”
Consequently, the study authors warn, those undergoing transgender “treatments” must be aware that “exposure to exogenous estradiol can lead to precocious puberty in prepubertal girls” and that “transgender persons should be thoroughly informed of the risk of transmission of transdermal hormones and be advised to wash hands, use gloves and avoid skin contact shortly after hormone application. Patients with children must be warned of the risk and Gender Clinics should consider the possibility of prescribing alternative routes of administration such as tablets or patches in high-risk patients.”
Not only was this father forcing his family to endure the trauma of claiming—and, presumably, expecting them to accept—that he is no longer a man, but also no longer a father, but his decision to physically alter his body had physical as well as psychological consequences, especially for his young daughter. The little girl was obviously far too young to understand what was happening. Then it began to happen to her as well.
As children’s advocate Katy Faust summarized the study’s findings: “Dad decided he was trans and ‘treatment’ included topical estrogen. Skin to skin contact triggered early puberty in his 3-year-old daughter, who developed breasts…. The fiction that he could change sex damaged his daughter’s body.”
Jonathon’s writings have been translated into more than six languages and in addition to LifeSiteNews, has been published in the National Post, National Review, First Things, The Federalist, The American Conservative, The Stream, the Jewish Independent, the Hamilton Spectator, Reformed Perspective Magazine, and LifeNews, among others. He is a contributing editor to The European Conservative.
His insights have been featured on CTV, Global News, and the CBC, as well as over twenty radio stations. He regularly speaks on a variety of social issues at universities, high schools, churches, and other functions in Canada, the United States, and Europe.
He is the author of The Culture War, Seeing is Believing: Why Our Culture Must Face the Victims of Abortion, Patriots: The Untold Story of Ireland’s Pro-Life Movement, Prairie Lion: The Life and Times of Ted Byfield, and co-author of A Guide to Discussing Assisted Suicide with Blaise Alleyne.
Jonathon serves as the communications director for the Canadian Centre for Bio-Ethical Reform.