Skip to main content

Autism Signs in Teen Girls: Why Autistic Girls Are Often Misunderstood

No longer known as a male-dominated diagnosis, more teenage girls are diagnosed with autism—finding the validation and vindication they were seeking.
Autism Signs in Teen Girls: Why Autistic Girls Are Often Misunderstood
Updated: September 8, 2023
Medically reviewed by  Dr. Reena B. Patel, LEP, BCBA
Table of contents

If you think your daughter has autism, know there’s tons of support out there for you and your child. (Take it from someone who has a daughter with an autism spectrum disorder diagnosis.)

For decades, it was assumed that it’s mainly boys who have autism.But lately, more and more studies are showing larger numbers of girls are being diagnosed as autistic as well. Many believe this is not due to the rates of autism itself increasing, but the fact that we finally have more information on how to recognize symptoms of autism in girls and the way that autistic traits in girls are different from boys.

In this feature, therapists who are autism experts share ways to support your teenage daughter through her diagnosis—and how to be an advocate for others on the spectrum.

Related: What to Do When Your Child with Autism Keeps Interrupting

What to Know About an Autism Diagnosis: Signs and Symptoms 

What exactly is autism? It’s as broad as the wonderfully gifted and unique number of people out there with the diagnosis, but Dr. Henry Roane, Vice President of Clinical Services at Elemy, a nationwide provider of childhood behavioral and mental healthcare, narrows it down to better understand:

“Autism is characterized by deficits in communication with others. In social situations, these communication problems can be compounded by another set of autism symptoms: a restricted range of interest in activities,” said Dr. Roane. For example, he adds, a child with autism might be particularly well-versed in one specific topic – then this topic dominates their conversation. “When combined with communication deficits, it can become quite difficult for the child to parse out what to talk about, with whom, and when.” 

It’s important to note autism will present itself in different ways with different people, so don’t automatically assume something is typical of autism.

What Are the Biggest Misconceptions About Autism in Girls 

What Are the Biggest Misconceptions About Autism in Girls

According to Dr. Roane, it’s this one: girls are told (or assume) they do NOT have autism. He says the way autism is expressed in girls is different from how it’s expressed in boys, which is why for some times autism went undiagnosed in girls. “Boys tend to display more repetitive motor behavior, like hand flapping, so that symptoms are very overt and easy to identify,” said Dr. Roane.

By contrast, girls might not display these sorts of ritualistic behaviors that way. “Their ritualistic behaviors might be more focused on their specific interests, and they might be less noticeable about displaying those behaviors.”

Girls "Mask" Symptoms 

As a society, we tend to think of girls as being quieter than boys in general, says  Dr. Roane, “and so if there is a boy who is making noises and flapping their hands versus a girl who is quietly reading, we might tend to focus on the boy’s behavior to the exclusion of the girl while both might be displaying symptoms of autism.”

Therefore, autistic girls, he adds, are more likely to “mask” (hide) their autism symptoms. 

Dr. Wendela Marsh, an autism expert and author of Recognizing Autism in Women and Girls, says a girl with autism might jiggle her leg and bite the inside of her cheek, “Stimming — as a way to express joy – for girls might include spinning or twirling around in a circle or bouncing up and down clapping or doing "jazz hands."

However, says Dr. Marsh, when boys do this, it strikes people as unusual, but when girls do the same things, they say she's "dancing" or has "happy hands."

Social Differences in Autistic Girls

Social Differences in Autistic Girls

According to Dr. Marsh, oftentimes autistic girls are more socially aware than autistic boys, “so that they look around and notice that others are behaving differently. They may try to study typical children, like a little anthropologist on the playground.”

Unfortunately, adds Dr. Marsh, while she may be successful at “fitting in” to a certain extent in elementary school, the teen years are different. “The other girls develop socially at a faster pace and seem to leave them behind.”

“Other girls might like My Little Pony cartoons, but our girl on the spectrum adores them, probably associates closely with one of them, and knows the episodes and songs by heart,” says Dr. Marsh. “Long after the others have outgrown it, many autistic women remain loyal to their childhood passions. When something is so intensely fascinating to them, it can be difficult not to talk about it, and once they start, difficult to stop.”

According to Dr. Marsh, Common misdiagnoses for girls with undiagnosed autism include obsessive-compulsive disorder (OCD), attention-deficit/hyperactivity disorder (ADHD), anxiety, depression, and even post-traumatic stress disorder (PTSD).

Is Autism Hereditary?

According to Dr. Reena B. Patel, a California-based Licensed Educational Board-Certified Behavior Analyst and autism expert—yes…and no. 

“We haven't identified the direct autism chromosome, the direct gene. So it's hard to say; so everyone in the family does genetic testing. And we have to also remember you could have another syndrome, which represents and mimic what an individual with autism would have,” said Dr. Patel.

If one child in the family has autism— let's say the older child— it’s a recommendation to undergo testing if you're expecting another, just to make sure. It doesn’t mean both kids will have it. “But I know families who have four kids and all of them are on the spectrum.”

Sometimes, adds Dr. Patel, parents will see themselves in their children with autism, which may or may not always be a genetic sign. “When I'm working with children, even teens, oftentimes one parent will say: 'This was me. I feel like this (the actions of their child with autism) is me, maybe not to this degree'. So, it's more of an awareness of autism; more of an acceptance.”

What to Do if You Think Your Daughter Has Autism 

What to Do if You Think Your Daughter Has Autism 

According to Dr. Marsh, listen to her and believe her. Many girls have tried to say they feel different from everyone else their age, only to hear that "everybody feels that way at your age." “They may say they have no friends and nobody likes them, only to have their parents tell them everybody likes them, or that they should try harder to make friends,” explains Dr. Marsh. 

“We don't tell our blind children to try harder to read the small print, or our children in wheelchairs to try harder to walk up the stairs, and we shouldn't put the burden of awkward social skills on the shoulders of our autistic girls.”

Remember, she adds: “They have been trying as hard as they can, and they're tired. If your daughter comes to you and shares their struggles socially, first listen. Just listen. Always be to listen, accept, and love them wherever they are and whatever they're feeling, unconditionally.

Getting an Autism Diagnosis 

Look up the prevalence of ASD in males versus females, and you will likely find ratios between 3:1 to 5:1 (male to female),” says autism expert Amanda Woodman, MS, BCBA, LBA, Clinical Director at Springtide. Woodman mostly worked with autistic boys and wondered, where were all the girls diagnosed with ASD?

“Regardless of the reason, there is no doubt that there are fewer females diagnosed with ASD than males, and there are many girls that go undiagnosed. I did finally work with a group of eight, preteen girls diagnosed with ASD in 2009; aged 9 to 14. It was clear to see how girls with less salient symptoms may be overlooked and diagnosed with anxiety or depression disorders. Girls also may be diagnosed later in life, and therefore, may not have access to early intervention.”

“I am now a mom and have two daughters ages five and two, and am hopeful whenever I am given an ASD screening questionnaire at the pediatrician’s office. I’m hopeful that the world has changed for girls with ASD since 2009 and they are being diagnosed earlier and subsequently, receiving intervention earlier.”

If you think your child has autism, says Woodman, ask your daughter’s pediatrician, ask your daughter’s nanny or preschool teacher, ask your family members, ask more than once, and do your research. Get your daughter evaluated and if she is diagnosed, fight for her to get Applied Behavior Analysis therapy (ABA). The United States Surgeon General (1999) has concluded that “thirty years of research demonstrated the efficacy of applied behavioral methods in reducing inappropriate behavior and in increasing communication, learning, and appropriate social behavior.”

Adds Woodman: “You are the best advocate your child has and you are the key to getting her on the path to success. She is going to thrive; she is going to learn more than you thought possible; she is going to amaze you!”

Rachel Sokol

About Rachel

With a degree in Magazine Journalism, Rachel is a writer who has been featured in a huge… Read more

Subscribe to Family Education

Your partner in parenting from baby name inspiration to college planning.