Written Question·Department of Health and Social Care·UIN HL1919

Gender Dysphoria

Tabled: 9 July 2026
Answered: 20 July 2026

Question

To ask His Majesty's Government whether they have commissioned research to establish the rate at which patients treated at adult Gender Dysphoria Clinics subsequently detransition, express regret about their transition, or discontinue treatment.

Answer

The Cass Review concluded that the percentage of people who subsequently detransition following medical intervention remains unknown due to the lack of long-term follow-up studies.In response to the recommendations of the Cass Review and the Operational a...
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