Autism Spectrum Disorder (ASD) is a developmental disorder typically diagnosed at or before age 3. Its symptoms can range from mild to severe and usually include social and communication delays, repetitive behaviors, restricted interests, and sensory challenges such as over-reactivity to light, sound, or touch. The criteria for autism have changed over time.1 In 2013, several categories of autism, including Asperger syndrome and pervasive developmental disorder not otherwise specified, were removed from the “Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition” (DSM-5), which is the diagnostic “Bible.” Today, everyone with autistic symptoms, whether mild or severe, receives an ASD diagnosis. This article will look at common symptoms of autism, autism in women, causes, diagnosis, support, and treatment.