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Is Autism More Common in Boys Than Girls? What the Data Shows

Priya Anand

PsyD, BCBA

Priya found her way into ABA through developmental psychology, and she's spent the last 13 years focused on the earliest years.

Is autism more common in boys than girls? Yes, autism spectrum disorder (ASD) is diagnosed more frequently in boys. Research shows that boys are about 4 times more likely to be diagnosed with autism than girls.


What Do the Numbers Say?

According to the CDC’s Autism and Developmental Disabilities Monitoring Network, approximately 1 in 34 boys and 1 in 145 girls are diagnosed with autism in the United States. This amounts to a male-to-female diagnosis ratio of roughly 4 to 1.


Why the Difference?

Experts suggest several possible reasons:

  • Biological factors: Genetic and neurobiological differences may make boys more susceptible.
  • Diagnostic bias: Autism may present differently in girls, leading to underdiagnosis. Girls often mask symptoms or have less obvious repetitive behaviors.
  • Social expectations: Girls may learn social skills in ways that camouflage autism signs.


What This Means for Families

Recognizing these differences is vital for early diagnosis and personalized ABA therapy. Early intervention supports better outcomes for all children. If you have concerns, Steady Strides ABA in Texas and New Mexico offers expert evaluations and tailored therapy plans. Contact us today to schedule a visit and help your child thrive.


FAQ


  • Is autism more common in boys than girls?

    Yes, boys are about 4 times more likely to be diagnosed with autism.

  • Why are boys diagnosed more often?

    Biological differences and diagnostic biases contribute to the disparity.

  • Can girls with autism be missed?

    Yes, girls often show subtler symptoms and may mask autism traits.

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