Autism spectrum disorder - Symptoms and causes - Mayo Clinic
Overview 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 along with others socially. The condition also includes limited and repeated patterns of behavior. The term "spectrum" in autism spectrum disorder refers to the wide range of symptoms and the severity of ...

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 many cases, distinctive reactions to sensory input. The specific presentation varies widely. [37][38] Clinicians often consider assessment for autism when these characteristics are ...

Signs and Symptoms of Autism Spectrum Disorder
Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain. People with ASD often have problems with social communication and interaction, and restricted or repetitive behaviors or interests. People with ASD may also have different ways of learning, moving, or paying attention. It is important to note that some people without ASD might also have some of ...

Autism: Symptoms, Causes, Types, and Testing - WebMD
Know about autism, including its symptoms, causes, types, and testing methods. Explore WebMD's comprehensive guide to better understand and manage autism.

About Autism Spectrum Disorder | Autism Spectrum Disorder (ASD) | CDC
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. We still have much to learn about these causes and how they impact people ...

Signs and Characteristics of Autism in Adults - Verywell Health
Adult autism diagnoses are increasing. Learn the signs and common characteristics of autism in adults and how to manage living with.

What is autism spectrum disorder? - Harvard Health
Autism spectrum disorder (ASD) is a complex neurological condition that affects how a person interacts, communicates, and experiences the world. Learn about its symptoms, causes, diagnosis, and support strategies across all ages.

The 3 Levels of Autism: Symptoms and Support Needs
Doctors use 3 levels of autism to define the amount of support an autistic person might want or need. We take a closer look.

Autism Test / Quiz | Psychology Today
Could you be on the autism spectrum? Autism, which can include social challenges, repetitive behaviors, and differences in information processing, may go undiagnosed until adulthood, particularly ...

What is autism - National Autistic Society
A definition of autism with an overview of communication, behaviours and interests, and sensory processing differences needed for an autism diagnosis.