Autism in Women: Why Late Diagnoses Are Rising & What It Means

The experience of being a woman and seeking a diagnosis for autism has changed dramatically in recent years. What was once a path often blocked by diagnostic criteria developed around male presentations of the condition is now, for many, unfolding through self-discovery aided by social media and a growing awareness of the female autism phenotype. But this shift isn’t without its critics, and a debate is brewing over whether increased diagnoses represent genuine recognition of previously missed cases, or a trend fueled by online self-diagnosis.

Four years ago, a patient named Sara sought therapy after realizing, through social media content, that she might be autistic. She subsequently received a formal diagnosis. This story, shared by therapist and researcher, is increasingly common. Individuals are finding community and recognition online, leading them to seek professional evaluation. Others are realizing they share traits with children recently diagnosed, or are finally understanding years of unexplained struggles with burnout and social interaction. The core issue isn’t whether autism exists in women – it does – but how it has historically been understood, and whether current diagnostic practices are adequately capturing its diverse presentation.

A History of Male-Centric Research

The roots of this diagnostic gap lie in the early history of autism research. Landmark studies conducted by Leo Kanner in the late 1930s and published in 1943 focused exclusively on white males. Whereas Hans Asperger’s work in Germany included girls, his focus ultimately shifted to boys, with a justification rooted in the societal norms of the time – the idea that boys with unique brains could benefit the Nazi regime, while girls were not afforded the same consideration. This historical bias had lasting consequences, shaping the development of diagnostic tools and criteria that were normed and validated based on male-presenting traits. The current diagnostic rate remains significantly skewed, with approximately 3-4 boys identified for every 1 girl.

However, this disparity appears to lessen when co-occurring intellectual disabilities are present, with the diagnostic rate approaching 1:1. This raises a critical question: is autism genuinely less prevalent in females without intellectual disabilities, or is it simply being overlooked due to a lack of awareness and appropriate diagnostic tools? Recent research suggests the latter is more likely.

Shifting Diagnostic Rates and the Swedish Study

A 2026 study from Sweden, following 2.7 million individuals born between 1985 and 2020, offers compelling evidence of this diagnostic lag. Fyfe et al. Found that by early adulthood, the gender gap in autism diagnoses largely disappeared. This suggests that as awareness grows and diagnostic practices evolve, a significant number of autistic girls and women are being identified who would have previously gone undiagnosed. The study estimates that the psychological community may be missing the identification of as many as 75% of autistic girls. Westside Children’s Therapy recently secured backing from Achieve Partners and hired Sarah Trautman to lead clinical efforts, signaling increased investment in behavioral health services.

For many women receiving a late diagnosis, the experience is profoundly validating. Years of feeling different, misunderstood, or “broken” are replaced with a sense of relief and self-acceptance. However, this newfound understanding often comes with grief over a lifetime spent navigating the world without knowing why they struggled. Many have been misdiagnosed with other conditions, and their concerns dismissed by healthcare providers who attributed their difficulties to a lack of effort.

The Backlash and Concerns About Overdiagnosis

Despite the growing recognition of autism in women, a backlash is emerging. Some professionals express skepticism about the rising number of diagnoses, questioning their validity and suggesting that many women are being mislabeled. This skepticism is reflected in social media posts and, more concerningly, in interactions with clients who have been told by other providers that their autism diagnosis is incorrect, even when supported by neuropsychological testing. Influential autism researcher Uta Frith recently voiced her concerns, stating she doesn’t believe autism is a spectrum and suggesting that many women receiving diagnoses are simply “hypersensitive.”

This resistance feels eerily familiar, echoing a history of women being misunderstood and misdiagnosed within the mental health system. Historically, women’s emotional and psychological distress has been dismissed as “hysteria” or attributed to wandering uteri, leading to harmful treatments such as lobotomies, tranquilizers, and even forced sterilization. The current pushback against recognizing autism in women risks repeating these patterns of dismissal and invalidation.

Is it an exaggeration to compare skepticism about autism in high-masking women to historical abuses like lobotomies? Perhaps. But having witnessed countless clients break down while recounting how a professional invalidated their hard-won diagnosis, it doesn’t sense like one. It feels like a continuation of a long-standing pattern of systemic bias within the mental health system.

What Comes Next: Continued Research and Bias Awareness

The path forward requires a commitment to ongoing research, critical self-reflection, and a willingness to challenge existing biases. Mental health professionals must stay abreast of the latest research on how autism presents in women and girls, and actively examine their own preconceptions. Sarah Mohiuddin, an autism expert at Michigan Medicine, is actively involved in advancing research and understanding of autism spectrum disorder.

As a profession, we must prioritize “doing no harm” by ensuring that diagnostic practices are inclusive and equitable. This means acknowledging the historical biases that have shaped our understanding of autism, and actively working to correct them. It also means recognizing that a diagnosis can be profoundly empowering for individuals who have spent years feeling lost and misunderstood. The conversation surrounding autism in women is evolving, and it’s crucial that we approach it with empathy, humility, and a commitment to evidence-based practice. Westside Children’s Therapy’s appointment of Sarah Trautman as Chief Clinical Officer demonstrates a commitment to specialized clinical leadership.