NICE found no mental health benefit from puberty blockers
Andrew Gold said:
“NICE as evidence? NICE? Review for the NHS used in the CASS and UK policy found no statistically significant improvement in gender dysphoria, mental health, body image, or psychosocial functioning versus no treatment. This is about having puberty blockers and rated the quality of evidence low or very low for all of these outcomes.”
Citing a named NHS body with a specific finding sounds authoritative and precise. The phrase 'no statistically significant improvement' is the language of rigorous science, and 'low or very low quality evidence' echoes the grading system used in systematic reviews, lending the claim an air of methodological seriousness.
What NICE actually found is that the existing studies were too small and too varied to produce statistically significant results: that is a statement about the research, not a verdict that blockers do not work. Puberty blockers pause an unwanted puberty; they are not designed to produce positive development on their own, which is why measuring mental health at the blocker stage and stopping there misses the logic of the intervention entirely. The real improvement in mental health and wellbeing comes when young people go on to receive the hormones that allow their bodies to develop in the right direction, and the NICE review did not evaluate that stage. Reading 'insufficient evidence' as 'evidence of no benefit' is a meaningful difference, and young people and their families deserve to know it, because the cost of confusing the two is a family walking away from a treatment that could genuinely help.
What I said at the time:
“So if you have a transgender kid who is really struggling because their body doesn't match their identity, and you give them puberty blockers, okay, it stops them developing. But it doesn't actually help them develop the other way. So if you measure, and this is what NICE did, so they measured, okay, did the kids get better when you gave them puberty blockers? And it's like, no. But what they didn't go on to do was do the evaluation of the research, which is the next bit, which is when you give them hormones, so they start developing in the right way, and that's when the mental health improves.”
Young trans people and their families, who may read 'no benefit found' as a settled scientific verdict and conclude that treatment is pointless or harmful, when the honest position is that the evidence base is limited and still developing.