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  1. Autism spectrum disorder - Symptoms and causes - Mayo Clinic

    May 22, 2025 · Autism spectrum disorder is a condition related to brain development that affects how people see others and socialize with them. This causes problems in communication and getting …

  2. Autism - Wikipedia

    Autism is primarily characterized by differences and difficulties in social interaction and communication, alongside restricted or repetitive patterns of interests, activities, or behaviors (stimming), and, in …

  3. Signs and Symptoms of Autism Spectrum Disorder

    May 16, 2024 · Learn about the signs and symptoms of ASD.

  4. Autism: Symptoms, Causes, Types, and Testing - WebMD

    Sep 11, 2024 · Autistic disorder. This is what most people think of when they hear the word "autism." It affects social interactions, communication, and play in children younger than 3 years.

  5. What is autism spectrum disorder? - Harvard Health

    May 22, 2025 · Autism is a neurodevelopmental condition that affects a person's ability to communicate and interact with others, often involving challenges with starting and maintaining conversations, …

  6. Autism Spectrum Disorder (ASD) Symptoms & Causes

    Apr 15, 2026 · Autism (autism spectrum disorder, or ASD) is a difference in how your child’s brain works that shapes their behaviors, interests, social interactions and ways of communicating. ASD falls …

  7. About Autism Spectrum Disorder | Autism Spectrum Disorder (ASD)

    Apr 13, 2026 · 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 …

  8. Autism spectrum disorder (ASD) | Autism Speaks

    Anybody can be autistic, regardless of sex, age, race or ethnicity. However, research from the CDC says that boys get diagnosed with autism four times more often than girls.

  9. Signs and Characteristics of Autism in Adults - Verywell Health

    Dec 19, 2025 · Key Takeaways Autistic people may have an unusual pattern of nonverbal communication. Autistic adults often have strong preferences for routines and can become stressed …

  10. Autism - World Health Organization (WHO)

    Sep 17, 2025 · The abilities and needs of autistic people vary and can evolve over time. While some people with autism can live independently, others have severe disabilities and require life-long care …