The term autism comes from the Greek word eaftismo, which means "self-contained" . Autism is not a disease but rather a developmental disorder of brain function permanent and profound. In many cases causes problems with autism: communication, both verbal and non-verbal.
In Autism social interactions with others, both physical (such as hugging or holding) and verbal (such as maintaining a conversation) are not easy to carry, routines or repetitive behaviors, such as repeating words or actions over and over again, follow their routine or schedule for their activities obsessively, or have very specific ways to fix your belongings.
The general symptoms are inability of social interaction, isolation, stereotypes (uncontrolled movements of limb, usually the hands), very rigid behavior, denial of any changes or new and repeat a particular action many times.