Autism is a neurodevelopmental disorder that affects almost all psychological functions and lasts a lifetime.The first to develop autism as a term was Eugen Bleuer, a psychiatrist from Switzerland, while Leo Kanner was the first to describe the autistic disorder.According to the DSI-IV classification, disorders from the autism spectrum are divided into 5 subtypes, namely:Autistic disorder, Asperger's disorder, Rett's disorder, Disorganized childhood disorder and Atypical autism.Despite many studies, the etiology of autism spectrum disorders has not been fully resolved. Autism is characterized by etiological complexity and diversity.The diagnosis of autistic disorders is a very complex process, and it is never easy to confirm the diagnosis of autistic disorders, especially in children under 3 years of age.By applying physiotherapy procedures and rehabilitation and mutual communication between members of the rehabilitation team, the quality of life of a person with autism can be improved.In order for the quality of life of an autistic person and his family to be as good as possible, it is very important to thoroughly educate the family and provide them with all the necessary support.