WPATH

WPATH, the World Professional Association for Transgender Health, is an international professional body that publishes the Standards of Care, the most widely cited guidelines for gender-affirming health care. The current edition is version 8, SOC-8, published in 2022.

Where you'll meet it

In clinic policies, insurance documents and surgeon requirements, often as "per WPATH SOC-8" or "meets WPATH criteria". Hormone prescribers also draw on the Endocrine Society's clinical practice guideline for gender-affirming hormone therapy, which is where the commonly cited blood level targets come from, and in the UK on NHS service specifications. You will see WPATH named alongside these rather than instead of them.

What WPATH is

WPATH is a membership organisation of clinicians, researchers and others working in trans health. It started life under a different name, and some older documents still refer to the "Harry Benjamin" standards. Its best-known output is the Standards of Care, which set out what good care looks like across mental health, hormones, surgery, voice, reproductive health and more. Each edition replaces the last, and policies written against an older edition can lag behind for years.

What SOC-8 says about hormones

For adults, SOC-8 supports starting hormones after an assessment that confirms marked and sustained gender incongruence, capacity to consent, and that other physical and mental health conditions are reasonably managed. It says that assessment can be done by a single suitably experienced health professional, who can be the prescriber, rather than requiring separate letters from mental health specialists. That is part of what makes informed-consent models possible within the guideline.

It also covers the effects to expect, the risks to discuss, the need for ongoing monitoring, fertility options before starting, and care for non-binary people, whose goals it recognises and for whom it supports individualised plans. It does not set out specific doses or low-dose regimens; non-binary and low-dose HRT explains why that matters.

What it is not

The Standards are guidelines, not law, and WPATH is not a regulator. Clinics, insurers and health systems adopt them fully, partly or not at all. Some add requirements the Standards do not ask for; others still carry wording from the previous edition, which leaned more on referral letters. Laws on gender-affirming care can override them entirely in some places, and those laws change.

Nor is WPATH an agency that approves or certifies clinics. A clinic describing itself as "WPATH compliant" is telling you which guideline it says it follows, nothing more.

Common questions

"WPATH requires a therapist's letter for hormones." Not under SOC-8, for adults. It asks for an assessment, which the prescriber can do. Some services still ask for letters, as their own policy.

"WPATH sets hormone levels." Target ranges mostly come from the Endocrine Society guideline and local practice; how to read your hormone blood results gives them.

"It only matters for surgery." Surgery is where criteria are most often quoted, but the Standards shape hormone access too.

What to ask

If a clinic or insurer tells you WPATH requires something, it is fair to ask which part of the Standards they mean, which edition, and whether it is their policy or the guideline's. The answer often explains an unexpected requirement. Gender clinics covers how requirements differ between services, and informed consent covers the route that leans most on SOC-8's approach.

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