Autism in Adulthood: Making Sense of Late Diagnosis and Identity

Supporting autistic women and individuals assigned female at birth (AFAB) who receive a diagnosis later in life calls for a compassionate, neurodiversity-affirming approach. An approach that validates personal history, creates safe space for unmasking, and encourages meaningful peer connection and support.

Autism Spectrum Disorder (ASD) is a complex neurodevelopmental condition characterized by persistent differences in social communication and interaction, alongside restricted and repetitive patterns of behavior, interests, or activities (American Psychiatric Association, 2022).

For many decades, both clinicians and autistic individuals have described a subgroup of autistic people whose outward presentation may not immediately appear autistic in social settings. These lived experiences and clinical observations suggest that, even when core features of ASD are present, some individuals appear in ways that are not easily recognized in everyday interactions (Attwood & Grandin, 2006; Kopp & Gillberg, 2011). This process is commonly referred to as masking.

Social camouflaging, or masking, refers to the conscious or unconscious process through which autistic individuals adapt, suppress, or conceal autistic traits in order to navigate social environments. Research and clinical narratives suggest that this experience is more commonly associated with autistic females, adults, and individuals with average to above-average cognitive abilities (Allely, 2019; Bargiela et al., 2016; Hull & Mandy, 2017; Livingston et al., 2019). For the individual this may feel like not knowing who you are. always being tired relationships that seem to be lacking in intimacy. Masking for an autistic person is like performing in a high-stakes, never-ending play without a script. Interacting with people by running scripts

There has also been growing attention to both the potential benefits and costs of camouflaging. On one hand, it may support some individuals in navigating relationships, education, employment, and social environments more successfully (Jorgenson et al., 2020; Livingston et al., 2019). In other words the autistic adult is camouflaging and masking for safety so they don't lose their job don't lose relationships lose their position lose money. Additionally this can help them in communication with neurotypical people giving them the ability to communicate their ideas to the people around them.

On the other hand, it is also associated with significant challenges, including delayed or missed diagnosis, reduced access to appropriate support, emotional exhaustion, and increased rates of anxiety and depression (Livingston & Happé, 2017; Mandy, 2019; Raymaker et al., 2020).

While ASD has been extensively studied, much of the existing literature and many diagnostic frameworks have historically been shaped by male-centered conceptualizations. As a result, there remains limited understanding of how autism may present in women and individuals assigned female at birth (AFAB), with important implications for timely diagnosis, access to care, and mental health outcomes.

Historically, autism has been diagnosed more frequently in males than females, with commonly cited prevalence ratios of approximately 4:1 (Maenner et al., 2021; Shaw, 2025; Sigurdardottir et al., 2025; Werling & Geschwind, 2013). However, in the absence of biological markers, diagnosis continues to rely primarily on behavioral observation and clinical assessment (American Psychiatric Association, 2022). Increasing research suggests that this disparity may reflect differences in presentation and diagnostic bias, rather than true differences in prevalence (Dworzynski et al., 2012; Lai et al., 2023; Lai & Baron-Cohen, 2015; Trundle et al., 2025). The concept of a “female autism phenotype” further highlights how current diagnostic criteria—largely based on male samples—may not fully capture the breadth and nuance of autistic presentations among AFAB individuals (Hiller et al., 2014; Mandy et al., 2012; Nazari et al., 2025).

As a result of these systemic gaps in recognition, many AFAB individuals are underdiagnosed or receive a diagnosis later in life, often after years of navigating unmet mental health needs. Late diagnosis can bring a complex emotional response, including grief for “lost time” alongside relief in finally understanding one’s neurotype. Identity formation at this stage often involves reframing past experiences, unlearning neurotypical expectations, and building a more supportive and individualized way of living (Stagg & Belcher, 2019).

Supporting autistic adults after a late diagnosis involves more than information—it involves care, validation, and space to reframe a lifetime of lived experience. Many individuals find that healing and identity development unfold gradually as they begin to understand their history through a more compassionate and accurate lens.

A key part of this process is creating space to process the diagnosis itself. For many, this can involve grief, relief, or a combination of both, as they reflect on years of misunderstood experiences or internalized shame. Many have spent long periods masking, consciously or unconsciously suppressing autistic traits to adapt to neurotypical environments, which can contribute to significant emotional exhaustion. Support from a neurodiversity-affirming therapist, who does not view autism as something to be “fixed” or “cured,” can be especially grounding during this stage.

Another important aspect of healing is unmasking and self-acceptance. Identity often begins to take shape when individuals can gently explore what they need, enjoy, and value, separate from what they were taught to perform. This may include honoring sensory needs and preferences, such as using noise-canceling headphones, engaging in stimming, or adjusting lighting without self-judgment. These accommodations can become meaningful forms of self-regulation and self-respect.

Connection with autistic peers can also be deeply validating. Many late-diagnosed adults find it healing to connect with others who share similar lived experiences and ways of processing the world. These relationships often reduce isolation and provide a sense of being understood in ways that may not have been available previously. In addition, diagnosis can create access to practical accommodations and advocacy. This may include workplace or educational supports such as flexible deadlines, quiet environments, or written instructions

Finally, late diagnosis often creates an opportunity to redefine relationships and boundaries. Many individuals begin to reconsider how they communicate their needs with family, friends, and colleagues. This can involve setting clearer boundaries, expressing sensory and social needs more directly, and educating others about how to offer support that honors authenticity rather than expectation.

Taken together, these supports are not about changing who someone is, they are about creating the conditions for greater self-understanding, ease, and authenticity after a lifetime of adaptation.

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