Hon Maryka Groenewald asks detailed questions regarding referrals, treatment, and demographics of patients accessing the Perth Children's Hospital Gender Diversity Service between January and October 2025. The Minister for Health provides specific data on referrals, biological sex, puberty blocker and cross-sex hormone treatments, and patient ages.

AnsweredQoN 974Legislative Council
Asked
2 December 2025
Portfolio
Health

QuestionView source ↗

For the period between 1 January 2025 and 31 October 2025: (a) how many referrals did the Perth Children’s Hospital Gender Diversity Service receive; (b) in reference to (a), how many of these referrals were biologically male; (c) in reference to (a), how many of these referrals were biologically female; (d) how many children and adolescents received treatment via the Service; (e) in reference to (d), how many of these patients were biologically male; (f) in reference to (d), how many of these patients were biologically female; (g) how many children and adolescents commenced stage one puberty blocker treatment; (h) in reference to (g), how many of these patients were biologically male; (i) in reference to (g), how many of these patients were biologically female; (j) how many children are currently receiving stage one puberty blocker treatment; (k) in reference to (j), how many of these patients are biologically male; (l) in reference to (j), how many of these patients are biologically female; (m) how many children commenced stage two cross-sex hormone treatment; (n) in reference to (m), how many of these patients were biologically male; (o) in reference to (m), how many of these patients were biologically female; (p) how many children and adolescents are currently receiving stage two cross-sex hormone treatment; (q) in reference to (p), how many of these patients are biologically male; (r) in reference to (p), how many of these patients are biologically female; (s) what was the age of the youngest child to receive treatment in this period; and (t) what is the age of the youngest child who has ever received treatment?

AnswerView source ↗

Answered
24 February 2026
Responded by
Parliamentary Secretary to the Minister for Health
Response time
7 days
(a) 176 (b) 58 (c) 118 (d) 154 (e) 88 (f) 66 (g) 20 (h) 16 (i) <5 (j) 88 (k) 60 (l) 28 (m) 40 (n) 20 (o) 20 (p) 91 (q) 46 (r) 45.
(s) 10 years old
(t) 10 years old
Due to the stringent consent process and multi-disciplinary nature of the care delivered by the Child and Adolescent Health Service’s Gender Diversity Service, the same young person may be counted twice in the event they move from puberty blockers to cross sex hormones.

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