Although they share many of the same symptoms, the two are distinct conditions. Autism spectrum disorders are a series of related developmental disorders that can affect language skills, behavior, social interactions, and the ability to learn. ADHD impacts the way the brain grows and develops. And you can have both. Autism spectrum disorder and ADHD are related in several ways. ADHD is not on the autism spectrum, but they have some of the same symptoms.
Milder ASD: Milder forms of autism, such as Asperger’s Syndrome, may not have been recognized by doctors or teachers when they were children. On the other hand, most studies show that at least half of the relatives of someone with autism do not have measurable impairments in their social and communication skills or behavior.