Autism Spectrum Disorder is a condition overlying a spectrum characterized by difficulties in communication, social interaction, and repetitive behaviors. The cause of A Autism is known as a spectrum disorder because many people experience the condition differently. Scientists are not sure what the exact cause is, but they believe it is at least in part genetic. It can be diagnosed by a doctor or other qualified professional by looking at the patient’s behavior. People with autism may make inconsistent eye contact, have difficulty understanding or sharing the emotions of others, have inconsistent facial expressions, have lasting interests in one specific subject, get upset about very slight changes in disease, and many other symptoms. It is a lifelong disorder that people often seek help for. People may need behavioral help to better relate to others, or they may seek alternative therapy.