Study commissioned by UK’s health service says hormones should only be prescribed to teens with ‘extreme caution’.
The evidence behind medical intervention for youth questioning their gender is “remarkably weak”, with some doctors abandoning “normal clinical approaches” to prescribe hormones to teens, a landmark review in the United Kingdom has found.
The long-term health effects of masculinising and feminising hormones on teens are “limited and need to be better understood” and such interventions should only be taken with “extreme caution”, the review commissioned by the UK’s National Health Service (NHS) said on Wednesday.
Puberty blockers, which are given to pre-teens to delay puberty, were not found to relieve gender dysphoria or improve “body satisfaction” and evidence about their effects on psychological wellbeing, cognitive development and fertility was insufficient or inconsistent, the review said.
There was also evidence that puberty blockers “buy time to think”, since the vast majority of young people on them proceed to hormone treatment, according to the review.
Hilary Cass, the paediatrician who led the review, said that while doctors were usually cautious about implementing new research findings in fledgling areas of medicine, “quite the reverse happened in the field of gender care for children”.
“Based on a single Dutch study, which suggested that puberty blockers may improve psychological wellbeing for a narrowly defined group of children with gender incongruence, the practice spread at pace to other countries. This was closely followed by a greater readiness to start masculinising/feminising hormones in midteens, and the extension of this approach to a wider group of adolescents who would not have met the inclusion criteria for the original Dutch Study,” Cass said in a foreword to the report.
“Some practitioners abandoned normal clinical approaches to holistic assessment, which has meant that this group of young people have been exceptionalised compared to other young people with similarly complex presentations. They deserve very much better.”
[Could we add a bit more about the review itself? Like what kind of study it was? Whether it had reviewed other studies and how many etc?]
Cass also expressed concern about the “exceptional” toxicity of the public discussion about transgender and gender-questioning youth.
“I have faced criticism for engaging with groups and individuals who take a social justice approach and advocate for gender affirmation, and have equally been criticised for involving groups and individuals who urge more caution. The knowledge and expertise of experienced clinicians who have reached different conclusions about the best approach to care are sometimes dismissed and invalidated,” Cass said.
“There are few other areas of healthcare where professionals are so afraid to openly discuss their views, where people are vilified on social media, and where name-calling echoes the worst bullying behaviour. This must stop.”
Cass said that studies were “exaggerated or misrepresented” on all sides of the debate despite this being an area with “remarkably weak evidence”.
“The reality is that we have no good evidence on the long-term outcomes of interventions to manage gender-related distress,” she said.
Cass tasked the University of York with conducting four analyses of existing evidence as part of the review, looking at current guidelines for managing gender dysphoria and studies on the use of hormones and puberty blockers.
The NHS commissioned the review in 2020, amid a sharp rise in the number of young people questioning their gender identity and concerns that some minors were being inappropriately identified as transgender.
The NHS last month announced it would no longer prescribe puberty blockers for children and young people outside of clinical research trials.
The UK’s first gender identity clinic for children, operated by the Tavistock and Portman NHS Trust, closed last month after years of criticism that it rushed minors into changing their gender.
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