Betting that "surgery" was a just a time-release hormone suppressor implant. "GnRH analogue treatments for children are prescribed, administered and monitored by a pediatric endocrinologist. The medication is typically given as injections, either monthly or every three months, or through an implant placed under the skin of the upper arm. The implant typically needs to be replaced every 12 months." From https://www.mayoclinic.org/diseases-conditions/gender-dysphoria/in-depth/pubertal-blockers/art-20459075