Intersex people, or those born with physical variations in sex characteristics, are far more common than most people realize. When broadly defined, an estimated 1.7% of the global population is born with intersex variations, about the same prevalence as people with naturally red hair and more common than identical twins. This can include differences in chromosomes (such as XXY patterns), hormone production or sensitivity, gonadal development (such as variations in ovaries or testes), or genital anatomy that does not fit typical medical definitions of female or male bodies (Clevland Clinic, 2025).
These variations are part of normal biological diversity. Despite this, the experiences of intersex people are largely invisible and stigmatized. In conjunction, the public’s understanding of intersex variations remains limited (Hegarty & Smith, 2022). Psychological science helps explain why stigma, secrecy, and violations of intersex people’s bodily autonomy persist, and how they shape mental health and well-being.
3 Insights From Psychology
1. Stigma, Not Biology, Drives Harm
Psychological research shows that stigma arises when bodies deviate from socially-enforced norms, particularly binary frameworks of sex and gender (Link & Phelan, 2001). The pathologization of intersex bodies can be internalized and negatively affect intersex people’s sense of self and social agency (Hart & Shakespeare-Finch, 2022). Importantly, secrecy, shame, and erasure, not intersex traits themselves, are what create distress (Meyer, 2003). When people are taught their bodies must be hidden or “fixed,” internalized stigma becomes a chronic health burden (Rosenwohl-Mack et al., 2020).
2. Non-consensual Interventions Can Cause Long-Term Harm
Research on non-consensual interventions on intersex people shows that they can cause trauma (Khanna, 2021). Many intersex people also report lasting anxiety around medical visits, feelings of bodily alienation, and difficulties with self-identity and self-worth as a result of stigma and violence in the healthcare system (Haghighat et al., 2023). Moreover, nonconsensual surgeries on intersex people can cause pain, discomfort, and dysfunction, and often require revisions or additional therapies (Berger et al., 2024).
3. Connection Is More Protective Than Expertise Alone
Consistent with decades of research on social support, peer connection is a powerful buffer against distress for intersex individuals and can encourage self-acceptance (Hart & Shakespeare-Finch, 2022). Finding others with shared lived experience can be life-saving, and is aligned with research findings that identity-affirming communities promote meaning, resilience, and post-traumatic growth (Haslam et al., 2018).
3 Action Steps
1. Replace Secrecy With Developmentally-Appropriate Truths
Psychological research on disclosure shows that withholding information about one’s body or identity increases anxiety and mistrust over time (Rimé, 2009). Families and providers should prioritize honest, age-appropriate communication that respects children’s autonomy and evolving capacity for understanding. Research shows that young people who are intersex are not necessarily troubled by their diagnoses and benefit from open discussion (Davis & Wakefield, 2017).
2. Treat Intersex Care as Trauma-Informed Care
The input of the intersex community is essential to adequately counsel about intersex variations and provide affirming care. Intersex individuals have called for trauma-informed frameworks that emphasize safety, choice, collaboration, and empowerment (Haghighat et al., 2023; SAMHSA, 2014). Applying these principles to intersex health care means delaying non-necessary, irreversible interventions when possible, and centering psychosocial well-being alongside physical health. Moreover, competent and consensual medical support across all life stages is essential to dismantling barriers and achieving health equity for intersex people.
3. Invest in Peer-Based and Community Supports
Psychological research consistently shows that shared identity and mutual support improve mental health outcomes beyond individual therapy (Haslam et al., 2018). Expanding access to peer networks and community-based resources is a critical, evidence-based intervention for intersex well-being.
Conclusion
Intersex justice is not only about changing medical protocols; it is about reshaping how society understands bodies, autonomy, and belonging. Psychological science makes clear that when people are allowed to know the truth about themselves, connect with others, and retain control over their bodies, well-being follows.