Main signs of autism. Common signs of autism in adults include: finding it hard to understand what others are thinking or feeling; getting very anxious about.
Autism spectrum disorder (ASD) occurs in all age, racial, ethnic, and socioeconomic groups, according to the Centers for Disease Control (CDC). Autism is generally characterized by social and communication difficulties and by repetitive behaviors. Often, severe forms of ASD are.
Autism is usually detected by the time children age 3 or 4 and common signs begin to piece together a puzzle. But sometimes a diagnosis isn't.