This disease is commonly seen in children. Most the child patients have problems when they talk to others. They avoid eye contact while talking to other people around them. Most of the children act weirdly due to this disease. They have the tendency to repeat lines to calm themselves down or need to line up their pencils or pens to help themselves concentrate on certain task. They have behavioral pattern defects; they may flap their arms to show you that they are happy or may hurt themselves that they are angry and frustrated. It is a kind of “spectrum disorder” as the symptoms are wide in nature.

Autism is idiopathic in nature. The patient suffers from this mental status throughout his life time. Most of the time, the disease is genetical in nature. Sometimes it is said that the autism is caused due to heavy metal intake in childhood through oral means. Heavy amount of pesticides and childhood vaccines may also lead to this disease.