Why Autistic Girls Are Still Being Missed in the UK — and How to Get an Assessment
For decades, autism was understood through research conducted almost entirely on boys. The diagnostic criteria, the clinical tools, and the commonly described traits were built on a male presentation of autism. As a result, autistic girls and women have been systematically under-identified — and many are still being missed today.
If you have a daughter, niece, or teenage girl in your life and something has always seemed slightly different — if she is bright but exhausted, socially able in short bursts but falls apart at home, or seems to be working twice as hard as her peers to keep up — this guide is for you.
Why are autistic girls so often missed?
The “male model” of autism
The clinical picture of autism that most people — including many GPs and teachers — still hold in their minds is of a child who avoids eye contact, prefers solitary play, has narrow and intense interests in subjects like trains or computers, and has obvious difficulties with social interaction. This profile more closely matches how autism presents in many boys.
Autistic girls often present differently. Research published over the past decade has increasingly documented a distinct female presentation that is more subtle, more social, and far easier to miss.
Masking and camouflaging
One of the most significant reasons autistic girls are missed is masking — the process of learning to suppress or hide autistic traits in order to fit in. Many autistic girls become highly skilled at observing social interactions, copying the behaviour of peers, and performing neurotypical social scripts.
Masking is exhausting. A girl who appears perfectly sociable and engaged in the classroom may be running on empty by the time she gets home, leading to what many parents describe as “after-school meltdowns” or what clinicians call autistic burnout. The mask hides the autism at school; the cost is paid at home.
Intense interests that look “normal”
Intense, focused interests — a recognised feature of autism — may look different in girls. A deep obsession with horses, a particular book series, a TV show, or a specific celebrity may be dismissed as typical girlhood enthusiasm rather than recognised as an autistic special interest. The interest itself does not raise flags; only the intensity might.
Social motivation
Many autistic girls are highly motivated to form social connections, even when they find social interaction confusing or exhausting. This drive to connect means they often work hard to learn the rules of social engagement — sometimes copying other girls’ behaviour in minute detail. From the outside, they appear sociable. The internal effort required is invisible.
Bias in diagnosis
Research has found that clinicians, teachers and parents all tend to rate the same autistic traits as less severe in girls than in boys. A girl who shows the same level of social difficulty as a boy may not trigger the same level of concern. Some studies suggest autistic girls need to display more significant difficulties than autistic boys before they receive a referral.
What are the signs of autism in girls?
Whilst every autistic girl is different, some patterns are commonly reported:
- Strong drive to copy or mimic peers, leading to friends commenting she is “easy to be around” but the girl feeling different inside
- Exhaustion after socialising, or school refusal, particularly in secondary school
- Intense difficulty with unexpected change, even when she appears outwardly calm
- Strong sense of justice and a tendency to be very upset by perceived unfairness
- One or two very close friendships rather than a wide social circle
- Deep, passionate interests that absorb a lot of her time and attention
- Sensory sensitivities — to sound, touch, clothing, or food textures — that feel overwhelming
- Anxiety, especially in social situations, which is sometimes diagnosed as an anxiety disorder before autism is identified
- Difficulty transitioning between activities or endings
- Perfectionism and distress at making mistakes
Many autistic girls are first diagnosed with anxiety, depression, eating disorders, or borderline personality disorder. These diagnoses are not wrong — they may be very real — but they can mask the underlying autism and delay appropriate support.
When are girls typically diagnosed?
On average, autistic girls are diagnosed significantly later than autistic boys. Many are not identified until secondary school, when the social demands increase and masking becomes harder to sustain. A large proportion are diagnosed in adulthood — sometimes following the diagnosis of their own children.
Late diagnosis does not mean that support is too late. Many autistic women describe their diagnosis as life-changing — a framework that finally explains a lifetime of experiences and enables them to understand themselves with compassion rather than self-blame.
How to get an autism assessment for your daughter
The referral process is the same as for any child — via your GP, through school, or via a private provider. However, there are a few things worth bearing in mind specifically when seeking an assessment for a girl:
- Bring written evidence to the GP. Describe specific examples of your daughter’s behaviour at home, not just how she presents in public. GPs may see a polite, articulate girl and underestimate the difficulties happening behind the scenes.
- Ask specifically about female presentation. When choosing a private provider, ask whether the assessing clinician has experience with autistic girls and with identifying masking. Not all do.
- Do not rely solely on school reports. Schools often miss autistic girls entirely. “She’s fine in class” does not mean she is fine. Your observations at home are valid and important evidence.
If your GP has refused a referral and you believe autism may be the explanation, read our guide on what to do if your GP refuses an autism referral.
For a full breakdown of what the assessment process involves, see our guide on what happens during a private autism assessment.
What about autism in adult women?
If you are an adult woman reading this and recognising yourself — perhaps after your own child was diagnosed, or after years of struggling without knowing why — you are not alone. Adult autism assessments are available both on the NHS (with long waits) and privately. The same principles apply: look for an assessor with experience in adult and female autism presentation.
Our guide on NHS autism waiting lists in the UK covers your options if you are facing a long wait.
Find a specialist autism assessor near you
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