Autism, also known as autism, is a neurological dysfunction in which parts of the brain that control communication, behavior, social interaction learning and coordination function abnormally. Children with autism are unable to process sensory input correctly and are often unable to translate this input into typical, comprehensible output. Each individual is affected in different ways and to varying degrees, with some showing only a few autistic traits, but some children with autism can show a large number or even all of them. If the following signs are present, the child may have autism: 1. Expression disorder: unclear spelling, inability to say a complete sentence; non-verbal expressions such as body movements and facial expressions are also unclear. 2. Social impairment: Does not fit in, plays by himself or herself even among children, does not interact with children; lacks eye contact with others. 3, lack of curiosity about the outside world: only interested in individual things, unable to receive information from the outside world, etc. Many children go to the hospital for examination after the age of 3. Parents, because they have been with their children for a long time, these speech and behavior performance will make parents mistakenly think that their children are capricious or still small and do not pay attention to them. And after the age of 3, when they arrive at kindergarten, they compare out with other children. Although there are individual children with autism who show some aspects of genius ability, 75% of children with autism are accompanied by a low level of intelligence.