What follows are some of the common signs and symptoms of mild or high-functioning autism in adults. This autism checklist cannot be used to make a diagnosis of autism spectrum disorder, but may suggest the need to seek a formal diagnosis from a professional who specializes in diagnosing autism in adults. 1. Avoidance of Social Situations. Feb 15, · Adults with autism who are high functioning may have only mild challenges, which are sometimes mistaken for symptoms of attention deficit hyperactivity disorder (ADHD); others may have more severe symptoms, like impaired spoken language. No two people with ASD will have the same symptoms manifested in the same way.
Oct 31, · Signs and symptoms of adult autism An autistic adult may get better access to services and support if they receive a diagnosis. Autistic people typically find aspects of communication and social Author: Jayne Leonard. Common signs of autism in adults include: finding it hard to understand what others are thinking or feeling getting very anxious about social situations finding it hard to make friends or preferring to be on your own.