Take the T Out, Put the T in: Gender affirming hormones in youth.

Background An increasing number of adolescents are seeking gender care at clinics and hospital programs, and requesting gender-affirming hormonal treatment. The interventions can either include suppression of testosterone and introduction of estrogen, or suppression of estrogen and introduction of testosterone. Aims This review article focuses on the psychosocial experiences of youth who have completed their endogenous puberty and are now requesting one of these two forms of gender-affirming hormonal treatment. We investigate the comparative profiles of these two subgroups of transgender/gender-expansive youth. Materials and methods Review of research data, established standards of care and practice guidelines, and clinical observations. Results Differences and similarities are noted and discussed in several realms: gender-related experiences prior to receiving hormonal treatment; the relationship between the physical changes and psychological experiences that accompany the introduction of testosterone or suppression of testosterone with replacement with estrogen; the intrapersonal and interpersonal implications of the treatment; considerations of fertility preservation for future family building; the role of the family in the decision-making process prior to starting a course of hormone therapy; and the capacity of youth to make informed decisions about these partially irreversible medical interventions. Discussion Medical providers who offer gender-affirming hormonal care to youth should work with the family and allied professionals to assure that the youth's gender health is enhanced, barriers to care are removed, and mental health risks are reduced, whether the T is coming out or going in. Conclusion The cohort of youth who come to medical providers after completing puberty, and request gender-affirming hormones in the form of increases or reductions in T have a great deal in common, and also extensive variation among them.