This is an education on the autism symptoms in attention deficit children. It is important to know because early intervention by spotting the common symptoms will mean the difference between normalcy in life and a stunted social existence. No one can truly explain fully the roots of autism nor is there enough literature to properly diagnose and truly define the ailment.Autism is quite a mystery. Every person who is diagnosed with the condition manifests different symptoms. There are various symptoms and each person diagnosed with the condition displays autism in his own unique way. It is rare to find all the symptoms or even most of the symptoms of autism in one single person. Generally speaking, an autistic has three problem areas: social skills, communication skills, and the manifestation of repetitive and restricted patterns of behavior, interests, and activities.Autism has a strong genetic basis, but autism cannot be single gene mutation. Environmental factors can also cause autism, but the studies are still in very early stages. Certain foods, infectious disease, heavy metals, solvents, diesel exhaust, PCBs, phthalates and phenols used in plastic products, pesticides, brominated flame retardants, alcohol, smoking, illicit drugs, vaccines, prenatal stress are also being studied and researched.The most important signs of autism can show different difficulty grades, from mild forms to severe cases. Autistic children have problems in interacting with other children or persons due to a disease triggered impaired social interaction ability. Verbal and nonverbal communications skills are very limited and they most often try to express themselves by signs and pictures. These children have most commonly repetitive interests and activities and their actions and thoughts are narrow and obsessive.All autism sufferers tend to mouth objects or rub surfaces and are extremely sensitive to light, sound, smell and touch. They are usually immune to pain and show little response to high painful stimuli. Autistic children do not react to loud noises but are highly irritated by some regular sounds like the one made by the vacuum cleaner. Physical contact is mostly overwhelming or over stimulating for them and they refuse cuddling, touching and kissingMost of the doctors are convinced that the causes of autism are genetic and are located in the brain only, because many tests were performed on autistic persons, and their organisms are identical to the organisms of normal persons, so everything that has to do with this condition is in the brain.The studies themselves are subject to controversy, however. The fact that not one of the studies showed 100% concordance in monozygotic twins suggests that there could be other factors at play in the cause of autism. Other familial studies have noted common characteristics – for instance, that autism is more common in families of physicists and engineers. This observation gave rise to the term ‘the geek syndrome’ to identify autism.