Doctors are usually cautious when treating children, especially when interrupting normal physical development. But very surprisingly, puberty blockers have never been put through clinical trials for use in gender medicine, and are not licensed by their manufacturers for this purpose. Their main uses are to treat hormone-related conditions in adulthood, in particular endometriosis and prostate cancer, and to ‘chemically castrate’ sex offenders. The two studies that looked at what happened when they were used to delay puberty in animals suggested this caused defects in spatial memory and
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