Why Autism Is Missed in Girls and Women
For years, autism was diagnosed much more often in boys than in girls.
The DSM-5-TR notes that autism is diagnosed more often in males than females, and research has long reflected a male-skewed diagnostic pattern. But newer research suggests an important possibility: the gap may not mean girls are rarely autistic. It may mean many autistic girls and women were missed.
At Forest Psychological Clinic in Portland, Oregon, we evaluate children, teens, and adults for autism and ADHD. One pattern comes up often in evaluations with adult women:
They learned how to study people.
They learned how to force eye contact.
They learned how to rehearse conversations before they happened.
They learned how to blend in.
From the outside, they may have looked socially “fine.” But internally, many were exhausted.
This is one reason autism in girls and women can be overlooked for years.
Autism in Girls and Women: What the Research Says
Historically, autism has often been described using a male-to-female diagnostic ratio of about 4-to-1. But research suggests the true ratio may be closer than that.
A 2017 systematic review and meta-analysis by Loomes, Hull, and Mandy found that although the overall male-to-female ratio across studies was about 4.2-to-1, higher-quality studies and studies that screened the general population found a ratio closer to 3-to-1. The authors concluded that girls who meet criteria for autism may be at higher risk of not receiving a clinical diagnosis.
A 2024 study by Harrop and colleagues examined more than 10,000 autism diagnoses from the University of North Carolina TEACCH Autism Program between 2000 and 2021. The researchers found that the proportion of females diagnosed with autism increased steadily over time, while females continued to be diagnosed later than males.
These studies point to a practical clinical question:
Not simply, “Why are more girls autistic now?”
But rather:
Why were so many autistic girls and women missed before?
Masking and Camouflaging Can Hide Autism
One of the biggest reasons autism is missed in girls and women is masking, also called camouflaging.
Masking happens when someone hides or suppresses autistic traits in order to meet social expectations. This can happen consciously or unconsciously.
For autistic girls and women, masking may include:
Forcing eye contact
Rehearsing conversations
Copying facial expressions
Memorizing social rules
Studying how other people interact
Hiding sensory discomfort
Suppressing stimming
Trying to appear calm when overwhelmed
Analyzing conversations afterward
From the outside, masking may look like social success.
But internally, it can feel like running extra software in the background all day.
This is why someone may appear socially capable and still be autistic. The question is not only whether a person can socialize. The question is how much it costs them.
Do they crash afterward?
Are they constantly scripting?
Are they performing rather than naturally participating?
Are they exhausted from trying to appear okay?
That is where the nuance is.
Eye Contact, Friendships, and Empathy Do Not Rule Out Autism
One of the most common reasons autism is missed in girls and women is that people rely on outdated assumptions.
They may think:
“She makes eye contact, so she can’t be autistic.”
“She has friends, so she can’t be autistic.”
“She is empathetic, so she can’t be autistic.”
“She does well in school, so she can’t be autistic.”
“She is successful, so she can’t be autistic.”
But autism does not work that way.
A person can make eye contact and still be autistic.
A person can have friends and still be autistic.
A person can be deeply empathetic and still be autistic.
A person can be successful at school or work and still be autistic.
The more useful question is not simply, “Can this person do the social thing?”
The better question is:
What does it cost them to do it?
Many autistic girls and women are not socially unaware. They are socially exhausted.
They may understand the rules because they studied them. They may appear confident because they rehearsed. They may have friends but still feel like friendship requires constant analysis, monitoring, and recovery time.
That difference matters.
Why Clinicians May Miss Autism in Girls and Women
Many clinicians were trained around a more stereotypical presentation of autism, often based on boys.
That does not mean clinicians are careless. It means the field’s understanding of autism has changed.
For years, autism was often associated with more obvious social communication differences, visible repetitive behaviors, intense interests that fit a narrow stereotype, or clear developmental delays. Girls who were quiet, high-achieving, socially observant, or able to imitate peers were more likely to be overlooked.
This is especially true when the person could maintain eye contact, do well academically, or hold a conversation.
But a good autism evaluation should look beyond surface-level behavior.
It should ask:
How much effort does social interaction take?
Does the person rehearse conversations?
Do they replay interactions afterward?
Do they feel exhausted after appearing “fine”?
Do they hide sensory distress?
Do they have shutdowns or burnout after social demands?
Were there early developmental signs that were minimized or misunderstood?
If these questions are not asked, autism can be missed completely.
Autism in Women Is Often Misdiagnosed
Many autistic women are first diagnosed with something else.
Common previous diagnoses may include:
Anxiety
Depression
ADHD
OCD
Bipolar disorder
Trauma-related conditions
Social anxiety
Personality disorder diagnoses
To be clear, these diagnoses can be real and accurate.
Autistic people can absolutely have anxiety, ADHD, OCD, depression, trauma, and other mental health concerns.
The problem is not that those diagnoses are always wrong.
The problem is that they may not be the whole story.
Sometimes autism is the missing framework underneath several patterns that never fully made sense on their own.
For example, a woman may have anxiety because she has spent years navigating social situations manually. She may have depression because she has been masking for so long that she no longer knows what rest feels like. She may have ADHD and autism together, but only the ADHD was recognized earlier.
This is especially important for adults. Before the DSM-5 was published in 2013, autism and ADHD could not technically be diagnosed together. That means many adults grew up in a diagnostic system that was not designed to fully recognize both conditions at once.
What a Good Autism Evaluation Looks For
Autism evaluations in girls and women require nuance.
A good evaluation should not rely on one behavior, one questionnaire, or one stereotype.
It should look at patterns across a person’s life, including:
Developmental history
Social communication patterns
Sensory sensitivities
Restricted or intense interests
Repetitive behaviors or routines
Emotional regulation
Masking and camouflaging
School history
Relationship patterns
Work or college functioning
Burnout and shutdowns
Co-occurring ADHD, anxiety, OCD, depression, or trauma
When someone has spent years masking, the signs are often not obvious on the surface.
You have to look carefully.
You have to listen for the difference between social ability and social exhaustion.
Many women come into autism evaluations afraid they will be invalidated. They worry that because they have friends, a job, a partner, children, or academic success, their internal experience will be dismissed.
But when autism fits, that moment of recognition can be deeply emotional.
It is one thing to privately wonder, “Am I autistic?”
It is another thing for someone who specializes in autism to say, “Yes. I see it too.”
Autism Diagnosis Can Bring Relief and Grief
For many girls and women, an autism diagnosis brings relief.
But it can also bring grief.
Grief for the years spent feeling broken.
Grief for the years spent self-blaming.
Grief for the years spent forcing themselves to function in ways that were quietly exhausting.
Grief for being misunderstood by teachers, parents, friends, partners, employers, therapists, or even themselves.
This grief does not mean the diagnosis is bad.
It means the diagnosis is meaningful.
Eventually, many people also feel clarity.
Their life starts to make more sense.
They were not broken.
They were not defective.
They were adapting.
And adaptation can hide struggle for a very long time.
Autism Evaluations for Women in Portland, Oregon
Forest Psychological Clinic provides autism and ADHD evaluations for children, teens, and adults in the Portland, Oregon area.
We specialize in neurodiversity-affirming evaluations that look beyond stereotypes and consider the full picture: developmental history, masking, sensory needs, social exhaustion, executive functioning, emotional regulation, and co-occurring conditions.
If you are an adult woman wondering whether autism may explain long-standing patterns in your life, or if you are a parent concerned that your daughter may be masking her struggles, an evaluation can help bring clarity.
You can learn more at:
FAQ: Autism in Girls and Women
Why is autism often missed in girls and women?
Autism is often missed in girls and women because they may mask or camouflage their autistic traits. They may copy social behavior, force eye contact, rehearse conversations, and appear socially capable while feeling exhausted internally.
Can a woman make eye contact and still be autistic?
Yes. Eye contact does not rule out autism. Some autistic girls and women force or imitate eye contact because they have learned it is expected, even if it feels uncomfortable or draining.
Can autistic girls have friends?
Yes. Autistic girls and women can have friends. The question is not simply whether they have relationships, but how much effort those relationships require and whether social interaction leads to exhaustion, anxiety, or burnout.
Can autistic women be empathetic?
Yes. Autistic women can be deeply empathetic. Autism does not mean a lack of empathy. Some autistic people feel others’ emotions intensely but may express empathy differently or become overwhelmed by emotional demands.
Why are autistic women often diagnosed with anxiety first?
Many autistic women are diagnosed with anxiety first because anxiety may be the most visible concern. However, the anxiety may be connected to years of masking, sensory overwhelm, social confusion, or constantly trying to meet expectations that do not fit their nervous system.
Can autism and ADHD occur together?
Yes. Autism and ADHD can occur together. Many adults were not diagnosed with both earlier in life because diagnostic rules changed over time, and autism and ADHD were historically not recognized together in the same way they are now.
What does masking look like in autistic women?
Masking may look like rehearsing conversations, copying facial expressions, forcing eye contact, hiding sensory discomfort, suppressing stimming, appearing calm when overwhelmed, and analyzing social interactions afterward.
What should an autism evaluation for women include?
An autism evaluation for women should include developmental history, social communication patterns, sensory sensitivities, masking, emotional regulation, restricted interests, routines, co-occurring conditions, and patterns across school, work, relationships, and daily life.
Final Thoughts
If you have spent years feeling socially exhausted, hyperaware of yourself, overwhelmed by expectations, or like social interaction has always felt more manual than automatic, it may be worth exploring that with someone who understands autism in girls and women.
Sometimes the people who look the most socially put together on the outside are the ones working the hardest internally just to keep up.
Autism is not ruled out by success, empathy, friendships, or eye contact.
And clarity is not about labeling someone as broken.
It is about finally having a map that makes the path ahead more understandable.
