<p>As experienced professionals involved in direct care for the rapidly growing numbers of gender-diverse youth, the evaluation of medical evidence or both, we were surprised by the Endocrine Society’s claims about the state of evidence for gender-affirming care for youth (Letters, July 5). Stephen Hammes, president of the Endocrine Society, writes, “More than 2,000 studies published since 1975 form a clear picture: Gender-affirming care improves the well-being of transgender and gender-diverse people and reduces the risk of suicide.” This claim is not supported by the best available evidence.</p>