Autism spectrum disorders (ASD) are a range of problems that affect the nerves and brain. ASD is usually found in children in the first 2 to 6 years of life. Children with ASD often have behavioral and social problems.
ASD is an umbrella term for autistic disorder, Asperger syndrome, and pervasive developmental disorder not otherwise specified.
The exact cause of ASD is not known. It may be a blend of:
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Autism spectrum disorder. National Institute of Mental Health website. Available at: https://www.nimh.nih.gov/health/topics/autism-spectrum-disorders-asd/index.shtml. Updated March 2018. Accessed August 15, 2019.
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Last reviewed December 2018 by EBSCO Medical Review Board Adrian Preda, MD Last Updated: 8/15/2019