Puberty blockers are experimental and may have serious consequences for adolescents.
Join our campaign for accurate medical information. The Ministry of Health describes puberty blockers as "safe and fully reversible". This description is innacurate. Several authorities below contradict the "safe and fully reversible" statement and highlight the uncertainties and negative health impacts of puberty blockers
National Institute for Health and Care Excellence (NICE) (UK)
NICE have published a review of the evidence for puberty blockers. They report little or no change in mental health outcomes and a "very low" certainty of evidence.
Learn MoreExpert Statements
Many experts believe that puberty supression could have irreversible and detrimental impacts.
Learn MoreIrish College of General Practioners (ICGP)
The ICGP have removed statements describing puberty blockers as "reversible" from their guidelines. They now emphasise psychotherapy and highlight the lack of evidence for blockers
Learn MoreUK High Court
The High Court heard evidence for and against blockers and concluded that the treatment was "experimental" with "very limited evidence as to its efficacy, or indeed quite what it is seeking to achieve".
Learn MoreCouncil for Choices in Health Care (Finland)
Finland has published advice on the medical treatment of gender dysphoric minors that contradicts New Zealand's Ministry of Health.
Learn MoreCentre for Evidence-Based Medicine (Oxford University)
The CEBM reviewed the research on puberty blockers and highlights blockers as a "momentous step in the dark".
Learn MoreNational Health Service (UK)
The NHS has removed language indicating blockers are "fully reversible" and now states that it is "not known whether hormone blockers affect the development of the teenage brain or children's bones"
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