Summary of Findings
Substantial evidence from peer-reviewed scientific studies, case studies, and clinical trials suggests that puberty-blocking drugs can negatively affect the skeleton, cardiovascular system, thyroid, brain, genitals, reproductive system, digestive system, urinary tract, muscles, eyes, and immune system. Particularly urgent concerns for adolescents treated with puberty-blocking drugs are loss of bone mineral density and increased risk of osteoporosis; potential for decreased IQ and other cognitive deficits; increased risk of depression and suicidal thoughts; and stunted sexual and reproductive development.
Evidence suggests that many of these effects are wholly or partially irreversible.
Endorsements and public support for this project provided by Get the L Out UK, Lesbian Action for Visibility Aotearoa (LAVA), Lesbian Fightback, Lesbian Labour, LesbianMeToo, Lesbian Strength, Résistance Lesbienne, and Scottish Lesbians.