Autism Spectrum Disorder, Causes, Signs and Symptoms, Diagnosis and Treatment

Autism spectrum, also known as autism spectrum disorder (ASD) or autism spectrum condition (ASC), is a range of neurodevelopmental disorders that includes autism and related conditions. Individuals on the spectrum present with two types of symptoms: problems in social communication and social interaction, and restricted, repetitive patterns of behavior, interests or activities. Symptoms are typically recognized between one and two years of age.Long term issues may include difficulties in creating and keeping relationships, maintaining a job, and performing daily tasks.

The cause of autism spectrum is uncertain.Risk factors include having an older parent, a family history of the condition, and certain genetic conditions.Diagnosis is based on symptoms.The DSM-5 redefined the autism spectrum disorders to encompass the previous diagnoses of autism, Asperger syndrome, pervasive developmental disorder not otherwise specified (PDD-NOS), and childhood disintegrative disorder.