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Self-reporting as the sole source: the entire diagnostic process relies on one person's claim

Self-reporting stands at the bottom of the evidence pyramid. With "gender identity," it is the only source—and is presented as indisputable. An ideological belief elevated to a diagnosis. On this single basis, puberty blockers are prescribed, healthy breasts are amputated, and healthy gonads are removed. In no other medical domain would this ever be acceptable. Here, any doubt is silenced and framed as transphobia.

What self-reporting is — and is not

Self-reporting means that the patient reports on an internal state themselves, without external verification. In empirical social science, this is a common method—but always with known limitations: socially desirable answers, recall bias, motivation for impression management, and the absence of an objective reference point. In diagnostics, self-reporting is always one source among others: observation, medical history, laboratory tests, imaging, and course over time. Never the only one.

For gender identity: self-reporting only, no verification

Whereas pain research combines self-reporting with fMRI, behavioral observation, and physiological measurements, and where depression diagnostics employs validated scales, clinical observation, and outcome measures, with "gender identity" self-reporting is everything . No biological marker , no brain scan , no genetic substrate , no time course, no external correlate. ICD-11 even explicitly stated that no psychiatric assessment is required to accept the claim. Affirm-only has become the official policy. It is no longer called diagnostics; it is dictated.

The Cass Review on self-reporting

Hilary Cass writes in her Final Report (2024): "There has been a tendency to accept self-reported gender identity uncritically, despite the absence of validated diagnostic instruments and the high rates of co-occurring conditions." The review documents how self-reporting in child and adolescent clinics was not assessed against developmental history, trauma, autism, or social influence. The SBU , COHERE Finland , and NICE reached the same finding. It is not a detail; it is a fundamental methodological defect.

The circular reasoning that remains

Without an independent criterion, self-reporting immediately falls into circular reasoning : "I am trans because I feel trans, and I feel trans because I am trans." The claim is unfalsifiable — there is no test that could refute it. As such, it meets the definition of a metaphysical claim , not a scientific one. On that basis, irreversible interventions are performed on healthy minors. That is not medicine — that is an ideological belief disguised as a diagnosis.

Comparison with other domains

No serious branch of medicine accepts self-reporting as the sole basis for irreversible interventions. In the case of anorexia, self-reporting of body image is taken seriously as a symptom , not as a reality — no one surgically removes a healthy skeleton because the patient "feels too fat." In the case of body integrity dysphoria, one does not amputate a healthy limb. Only in the case of "gender identity" has self-reporting become self-proving. That difference makes the concept unsuitable for irreversible medical interventions. It fits into a broader pattern: being versus feeling is structurally confused, and positive outcomes are magnified while negative ones are suppressed.