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Related Experiment Videos

Transsexual sisters.

P R Joyce, L Ding

    The Australian and New Zealand Journal of Psychiatry
    |June 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    This study reports the first documented case of sisters diagnosed with transsexualism. The findings suggest that familial factors may play a role in the etiology of this rare condition.

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    Area of Science:

    • Psychiatry
    • Genetics
    • Endocrinology

    Background:

    • Transsexualism, now understood as gender dysphoria, is a condition characterized by a strong desire to be of another gender.
    • Female transsexualism is notably less common than male transsexualism, making familial cases exceptionally rare.

    Observation:

    • This report details the first documented instance of siblings, specifically sisters, both diagnosed with transsexualism.
    • The observation highlights a potential genetic or familial link in the development of gender identity incongruence.

    Findings:

    • The co-occurrence of transsexualism in sisters is statistically improbable given the condition's low incidence in females.
    • This familial clustering strongly suggests that genetic or shared environmental factors may contribute to the etiology of transsexualism.

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    Implications:

    • The findings warrant further investigation into the genetic and familial underpinnings of gender dysphoria.
    • Understanding these familial factors could lead to improved diagnostic approaches and targeted support for individuals and families affected by gender identity issues.