Even with improved diagnosis and treatment in recent years, studies show that less than 20\% of individuals with autism spectrum disorder (ASD) are considered to have a Good/Very Good outcome in adulthood. Variables affecting long‐term prognosis include IQ, development of some useful language by age 5 or 6, severity of autistic symptoms, early intervention, and access to support networks in adulthood. Specific concerns for adults with ASD are mental health, mortality and life expectancy, deterioration with age, and what constitutes a good quality of life.