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Autism, or Autism Spectrum Disorder (ASD), is often misunderstood — especially when it comes to its causes. While there’s no single reason a child is autistic, scientists have identified several key factors that contribute to it. Understanding these helps remove stigma and allows for better support early on.
Let’s break down the three main causes of autism, based on current research:
1. Genetics Play a Major Role
According to the CDC, autism tends to run in families. Specific gene variations — especially those related to brain development — have been linked to an increased risk of autism. In fact, up to 90% of autism risk may be genetic, according to a 2019 study published in JAMA Psychiatry.
ree-2. Differences in Brain Development
Brain imaging studies show that children with autism often have differences in how their brains are wired — particularly in areas related to social interaction, communication, and behavior. These differences likely begin before birth.
3. Environmental Triggers (During Pregnancy)
While genes set the stage, certain environmental factors during pregnancy may increase the likelihood of autism. These can include complications during birth, advanced parental age, or prenatal exposure to air pollution or certain medications (Johns Hopkins Bloomberg School of Public Health).
At Epic Minds Therapy, we know every child’s journey is unique. We offer in-home and school-based ABA therapy across North Carolina — always tailored to your child’s needs and your family’s goals.
Let’s build brighter futures, together. Contact us to get started.
FAQs
Can vaccines cause autism?
No. This has been thoroughly debunked by decades of research, including by the CDC and WHO.
Is autism always inherited?
Not always, but genetics is a strong factor. Some cases have no known family history.
Can autism be diagnosed before age 2?
Yes. Early signs can appear before age 2, and early intervention can make a big difference.