Is Autism More Common in Boys Than Girls?

• June 11, 2025
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Yes, autism is more common in boys than girls. According to the CDC, about 1 in 36 children in the U.S. is diagnosed with autism, and boys are nearly four times more likely to be diagnosed than girls.

Why Are More Boys Diagnosed with Autism?

There are several reasons why autism is diagnosed more frequently in boys:

• Biological differences: Research suggests that boys may be more biologically prone to developing autism.
• Diagnostic criteria: Traditional autism criteria may better reflect how autism presents in boys.
• Girls may mask symptoms: Many girls with autism develop better social coping skills and may “mask” their symptoms, leading to underdiagnosis.

Is Autism Different in Girls?

Yes, autism often looks different in girls. They may show:

• Stronger social imitation skills
• Deep interests that seem socially typical
• Less obvious repetitive behaviors

This can make autism harder to detect in girls, delaying diagnosis and support.

While autism is more commonly diagnosed in boys, it’s essential to recognize how symptoms may appear differently in girls. Early and accurate diagnosis matters for every child. If you have concerns about your child’s development, Kids N Heart offers personalized ABA therapy services that support both boys and girls on the spectrum.

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Frequently Asked Questions

1. Why are boys more likely to be diagnosed with autism?

Boys may have a higher biological risk, and current diagnostic tools are better at identifying typical male traits of autism.

2. Can girls have autism without showing classic signs?

Yes, many girls mask their symptoms or have traits that go unnoticed, leading to underdiagnosis.

3. At what age can autism be diagnosed in children?

Autism can often be reliably diagnosed by age 2, though signs may appear earlier.

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Sources:

1. https://www.cdc.gov/autism/data-research/index.html
2. https://www.nih.gov/news-events/nih-research-matters/gene-linked-sex-differences-autism