Autism is a complex neuropsychiatric developmental disorder. The causes of its occurrence have not been determined by this date, but there is a lot of research and there are many theories which show resemblance of the cause in many children. Research prove that the coldness and if the mother is absent, it can influence the onset of autism, just like the prenatal period of the baby and separation or hospitalization of the mother and baby. There are several types of autism: primary, secondary and infantile. The most common symptoms of autism are: absence of the first smile between the third and fourth month, sudden cessation of speech, frequent repetitive hand movements, absence of social contacts, absence of play like playing with their fingers in front of the face and no need to socialize with other children. Diagnosing autism is a very complex process. Experts, psychologists, psychiatrists, speech therapists and special educators work on it, and a diagnosis is never made by only one person. Likewise, the diagnosis of autism is never made by one symptom but several. The therapy of autism is diverse, it works on those areas that are lost or that are missing in the child while the ones that interest the child and the ones in which he/she is good at are encouraged. The most common therapies are psychotherapy or certain medications prescribed by a psychiatrist, kinesiotherapy to help them in general condition, music therapy and art therapy so that children with autism would be able to express themselves creatively and develop their imagination. This therapy can lead to their great success. Also, autistic children commonly have a specific talent (autistic savant) or an interest in an object. The use of the same object can give to the adequate therapy as they carry that thing o ran object wherever they go as it is their consolation.