Understanding and diagnosing gender dysphoria
Two classification systems are used for diagnoses related to GD: the Diagnostic and Statistical Manual of Mental Disorders, Fifth Ed. (DSM-5)8 and the International Classification of Diseases, 10th Rev. (ICD-10).9
ICD-10 criteria use the term “gender identity disorder;” DSM-5 refers to “gender dysphoria” instead. It is important to emphasize that these classification systems represent an attempt to categorize a group of signs and symptoms that lead to distress for the patient, and are not meant to suggest that being transgender is pathological. In fact, in DSM-5—released in 2013—the American Psychiatric Association revised the terminology to emphasize that such individuals are not “disordered” by the nature of their identity, but rather by the distress that being transgender causes.8
For a diagnosis of GD in children, DSM-5 criteria include characteristics perceived to be incongruent between the child’s sex at birth and the self-identified gender based on preferred activities or dislike of his or her own sexual anatomy. The child must meet 6 or more of the following for at least 6 months:
- a repeatedly stated desire to be, or insistence that he or she is, of the other gender
- in boys, a preference for cross-dressing or simulating female attire; in girls, insistence on wearing only stereotypical masculine clothing
- strong and persistent preferences for cross-gender roles in make-believe play or fantasy
- a strong rejection of toys/games typically associated with the child’s sex
- intense desire to participate in stereotypical games and pastimes of the other gender
- strong preference for playmates of the other gender
- a strong dislike of one’s sexual anatomy
- a strong desire for the primary (eg, penis or vagina) or secondary (eg, menstruation) sex characteristics of the other gender.8
Adolescents and adults must meet 2 or more of the following for at least 6 months:
- a noticeable incongruence between the gender that the patient sees themselves as and their sex characteristics
- an intense need to do away with (or prevent) his or her primary or secondary sex features
- an intense desire to have the primary and/or secondary sex features of the other gender
- a deep desire to transform into another gender
- a profound need for society to treat them as someone of the other gender
- a powerful assurance of having the characteristic feelings and responses of the other gender.8
For children as well as adolescents and adults, the condition should cause the patient significant distress or significantly affect him or her socially, at work or school, and in other important areas of life.8
Is the patient a candidate for hormone therapy?
Two primary sources—Standards of Care for the Health of Transsexual, Transgender, and Gender-Nonconforming People, Version 7, issued by the World Professional Association for Transgender Health (WPATH)10 and Endocrine Treatment of Transsexual Persons11 by the Endocrine Society—offer clinical practice guidance based on evidence and expert opinion.
WPATH recommends that a mental health professional (MHP) experienced in transgender care diagnose GD to ensure that it is not mistaken for a psychiatric condition manifesting as altered gender identity. However, if no one with such experience is available or accessible in the region, it is reasonable for a primary care physician to make the diagnosis and consider initiating hormone therapy without a mental health referral,12 as the expected benefits outweigh the risks of nontreatment.13
Whether or not a MHP confirms a diagnosis of GD, it is still up to the treating physician to confirm the patient’s eligibility and readiness for hormone therapy: He or she should meet DSM-5 or ICD-10 criteria for GD, have no psychiatric comorbidity (eg, schizophrenia, body dysmorphic disorder, or uncontrolled bipolar disorder) likely to interfere with treatment, understand the expected outcomes and the social benefits and risks, and have indicated a willingness to take the hormones responsibly.
Historically, patients were required to have a documented Real-Life Experience (RLE), defined as having fully adopted the new gender role in everyday life for at least 3 months.10,11 This model has fallen out of favor, however, as it is unsupported by evidence and may place transgender individuals at physical and emotional risk.. Instead, readiness is confirmed by obtaining informed consent.12
Puberty may be suppressed with a gonadotropin-releasing hormone (GnRH) agonist in adolescents who have a GD diagnosis and are at Tanner stage 2 to 3 of puberty until age 16. At that point, hormone therapy consistent with their gender identification may be initiated.11 (See “How to help transgender teens.”11,14-20)