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Jan 6, 2018 · Autism spectrum disorder has no single known cause. Given the complexity of the disorder, and the fact that symptoms and severity vary, there are probably many causes. Both genetics and environment may play a role. Genetics. Several different genes appear to be involved in autism spectrum disorder.
Scientists don't know exactly what causes autism spectrum disorder (ASD). Autism was first described in the 1940s, but very little was known about it until the last few decades. Even today, there is a great deal that we don't know about autism.
Dec 9, 2022 · Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain. Some people with ASD have a known difference, such as a genetic condition. Other causes are not yet known. Scientists believe there are multiple causes of ASD that act together to change the most common ways people develop.
This brochure presents information about autism spectrum disorder (ASD) including signs and symptoms, causes and risk factors, diagnosis in young children, older children, teens, and adults, and treatments.
Research suggests that autism spectrum disorder (ASD) develops from a combination of: Genetic influences and. Environmental influences, including social determinants. These factors appear to increase the risk of autism and shape the type of autism that a child will develop.
