 Autism Spectrum Disorder ASD is a neurodevelopmental lifelong disorder, significantly impairing the quality of life of patients and their families. The symptoms are thought to result from interaction between genetics and environment. Treatment is multidisciplinary, based on behavioral therapy, education, and sometimes requires specialized care i.e. genetics and pharmacotherapy. The lack of consensus about the etiology of ASD directs researchers to define the condition as combination of symptoms, patients history data, the impact of co-morbidities including gastrointestinal disorders, and the effectiveness of various management therapies. 