What Is Autism? Early Signs and What It Looks Like in Girls
Key Takeaways
- Autism exists on a spectrum—it affects communication, social interaction, and sensory processing in a wide range of ways, meaning each autistic person has unique strengths and support needs.
- Autism in girls often looks different from how it does in boys.
- Masking can make autism harder to recognize, especially in girls, who are often more likely to mimic social behaviors and appear engaged, even when they feel disconnected.
- Rising diagnoses of autism reflect better awareness, not higher rates.
Autism affects how a person communicates, interacts socially, and experiences the world around them. While autism has historically been diagnosed more often in boys, growing awareness and research are helping clinicians and the public better understand the unique ways that autism can appear in girls.
What is Autism?
Autism is a neurodevelopmental condition that affects social communication and behavior. Autism can present in many different ways and with varying levels of support needs.
How Autism Can Appear Differently in Girls
For many years, autism was largely understood through the lens of boys, leaving girls’ experiences less visible. As a result, girls whose traits appeared differently were often overlooked or diagnosed later.
In recent years, however, awareness of how autism presents in girls has grown significantly.
Masking in Autism
Masking, or social camouflaging, happens when autistic people consciously or unconsciously hide traits associated with autism to fit in socially.
This can include:
- Mimicking the behavior of peers
- Suppressing repetitive behaviors or sensory-related behaviors
- Avoiding talking about preferred topics
- Copying speech patterns or body language
- Practicing social responses
- Making eye contact even though it might be uncomfortable
- Negative mental health effects, as a result of masking
“Autistic girls are more likely to engage in masking,” says Suzannah Iadarola, PhD, Director of the Strong Center for Developmental Disabilities at the University of Rochester Medicine. “They tend to have a stronger desire to fit in with their same-age peers and are more intentional about mimicking social behaviors.”
Research suggests that autistic girls can appear socially engaged even when their interactions aren’t fully reciprocal or meaningful. They may seem part of a group while still feeling disconnected. In contrast, boys may show more obvious signs of reduced social engagement.
Key Difference: Interests
Intense or highly focused interests are another common feature of autism, though they may look different in boys and girls.
Boys are more likely to develop interests that stand out socially or seem unusual for their age. Because these interests are more noticeable, they may be more easily recognized as a potential sign of autism.
Girls, however, may develop strong interests in topics that are also popular among their peers, such as books, celebrities, animals, or hobbies. While the subject may appear typical, the intensity or focus can still be characteristic of autism. Because these interests align with those of peers, they may be easier to overlook.
Why Are More Girls Diagnosed with Autism Today?
More girls have been diagnosed with autism in recent years—not because autism is becoming more common in girls but because awareness and understanding are improving.
- Better informed: Parents, educators, and healthcare providers now have more information about signs of autism in girls, making it easier to recognize and seek evaluations.
- Increased research: Researchers are also increasingly studying gender differences in autism, including how masking and social expectations may affect diagnosis.
- More awareness: Greater public visibility has played a role as well. More autistic adults, particularly women, are openly sharing their diagnoses and experiences, helping to broaden public understanding and challenge older stereotypes about what autism looks like.
Together, growing awareness, research, and representation are helping more autistic girls —who might previously have been overlooked—receive the recognition, validation, and support they need.
Levine Autism Clinic in Rochester, NY
The Levine Autism Clinic provides comprehensive and coordinated care to children with autism spectrum disorder (ASD). Our team of experts monitors developmental progress, treats health problems associated with ASD, assesses and treats behavior problems, and ensures that families have needed resources and connection to community supports.