Self-diagnosis and its implications in child and adolescent psychiatry

This week's post by Christophe Gauld, Laelia Benoit, and Floriane Brunet considers how the increasing prevalence of self-diagnosis influences the relationship between clinicians and young patients.

In recent years, many adolescents have begun arriving at psychiatric consultations not to seek a diagnosis but to confirm one they already believe they have. They describe themselves as, for instance, autistic or having ADHD after reading descriptions (online) that resonate with their experience. This phenomenon of self-diagnosis happily challenges established hierarchies of knowledge in psychiatry, especially in child and adolescent care.  

But it also raises an important question, which we explored in-depth in a recent article: how should clinicians and young patients (re)position themselves in relation to one another, especially when differences in age and status necessarily influence the clinical relationship?

Let us recall that in most clinical contexts, diagnostic authority is concentrated in professional hands. And since psychiatric categories do not rely on biomarkers, the formulation of a diagnosis remain closely connected with social and moral judgments of harm. This interpretive dependence of diagnosis on clinicians creates an asymmetric epistemic space, in which the clinician’s account can prevail over the patient’s own lived experience and interpretation.

In children and adolescents, this imbalance could combine with childism, a form of discrimination that assumes the child’s voice is unreliable, immature or irrelevant. Like ageism, which marginalizes people because of age, childism operates on the same generational axis by devaluing children through assumptions of dependency and immaturity. It refers to a system of attitudes and practices that naturalise adult superiority, treating children as incomplete or incapable of rational understanding. Its specificity is in the transformation of developmental difference into a moral and social justification for inequality.

Childism operates structurally, embedded in institutional norms and clinical routines that reinforce adult authority and marginalise children’s voices. It frames adult perspectives as normative, establishing “standards of reason,” credibility and emotional coherence that children are expected to follow. In clinical practice, it appears to arise “naturally” from age differences. This naturalistic assumption biases how clinicians listen to patients whose discourse differs from their own. And this is compounded by the fact that childism intersects with other forms of discrimination (e.g., gender, disability, class, etc.), producing cumulative disadvantages that shape how young people are heard and understood.

To see how this might play out in clinical practice, consider an example. When, for instance, an adolescent comes to a clinician declaring “I think I’m autistic”, they do not simply misuse medical language. They reclaim interpretative power over their own experience. They demand recognition as knowers. These acts are epistemically and politically significant. They reveal how power and knowledge are interdependent in psychiatry: thus, although some self-diagnoses may rely on incomplete or misleading information, they also open a space for rethinking how clinical knowledge is shared and validated.

Due to their distinct conceptual histories and to the primary object of application of childism – i.e., childhood – epistemic injustice and childism are conceptually related and mutually reinforcing, operating across interconnected levels. Epistemic injustice designates a harm to someone’s capacity as a knower, which becomes visible within communicative and epistemic exchanges where authority and credibility are unequally allocated, and which contributes to broader structural patterns.

Childism, in parallel, refers to the institutional norms, laws and professional practices that naturalise adult superiority, and which are enacted and reproduced within everyday clinical interactions. In this sense, childism both shapes and is shaped by interpersonal clinical practices, and epistemic injustice reflects how these normative assumptions are lived and negotiated in concrete encounters in child and adolescent psychiatry. Together, these overlapping dynamics help explain how self-diagnosis makes visible the ways credibility, authority and recognition are distributed in clinical care.

Bios

Christophe Gauld is a French adolescent psychiatrist with a PhD in philosophy of psychiatry (Université Paris 1 Sorbonne).

Laelia Benoit, MD, PhD, is a child and adolescent psychiatrist and researcher affiliated with Yale University and Inserm. Her work focuses on qualitative and mixed-methods research, child mental health, and the social and systemic determinants of psychiatric care..

Floriane Brunet is a French child psychiatrist and holds a university diploma in philosophy of psychiatry.