ADHD and Autism will have similar symptoms but you have to remember that they are two very different conditions. Autism is a spectrum of various disorders that may affect the development of the various aspects of the brain. For example, it would affect people’s language skills, the behavior of people, and the different social interactions that people may have.
In fact, there are some people with autism who will find it hard to learn and to interact with other people. Those who have ADHD may also have an impact on how the brain will be able to develop. Some people may have both. Proper diagnosis is important so that people can be given the treatment that they need immediately.