The main symptoms include problems with social communication and repetitive behaviors and may include the inability to maintain eye contact, not showing average communication skills expected by a specific age, repeating words or phrases, following specific routines, intense interests in a particular topic or activity, delayed language development, delayed cognitive development, seizures, gastrointestinal dysfunction, and sleep problems.[1]
What are the main signs and symptoms of autism spectrum disorder?
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•Last Updated: May 16, 2025
The main signs and symptoms of autism spectrum disorder include difficulties with social communication and repetitive behaviors, and may involve issues such as delayed language and cognitive development, inability to maintain eye contact, and intense interests in specific topics. Additional symptoms can include seizures, gastrointestinal dysfunction, and sleep problems.