The Transsexual Phenomenon

work by Benjamin

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July 21, 2026

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The Transsexual Phenomenon is a seminal work by endocrinologist and sexologist Harry Benjamin, published in 1966. Benjamin pioneered the medical understanding and treatment of transsexuality, challenging the prevailing psychoanalytic approach of his time.1

He distinguished transsexuals from transvestites and homosexuals, arguing that transsexual individuals possess a gender identity incongruent with their biological sex. Benjamin advocated for medical interventions, including hormone therapy and surgery, to align a person's physical body with their gender identity. His work laid the foundation for the development of standards of care for gender dysphoria and established him as a key figure in the history of transgender healthcare.123

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Harry Benjamin
In 1966 he published The Transsexual Phenomenon, which drew on his work with clients who had a variety of “sexual disorders.” He argued that transsexuals were a group distinct from transvestites (heterosexual men who derived sexual pleasure from dressing in women’s clothing but who did not wish to become…
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In 1966 he published The Transsexual Phenomenon, which drew on his work with clients who had a variety of “sexual disorders.” He argued that transsexuals were a group distinct from transvestites (heterosexual men who derived sexual pleasure from dressing in women’s clothing but who did not wish to become…
Read More