Autism vs ADHD in Adults: How to Tell the Difference

Many adults wonder whether their experiences are better explained by autism, ADHD—or both.

While there is overlap, there are also important differences.

Shared Features

Both autism and ADHD can involve:

• executive functioning challenges

• sensory sensitivities

• social difficulties

• burnout

Key Differences

ADHD

• difficulty sustaining attention

• impulsivity

• inconsistent focus

Autism

• differences in social communication

• need for predictability

• deep, focused interests

What About Both?

Many adults meet criteria for both autism and ADHD (often referred to as AuDHD).

Why a Professional Evaluation Matters

Because of the overlap, it can be difficult to determine this on your own.

A comprehensive evaluation helps clarify:

• what is present

• how different factors interact

• what supports will be most helpful

Related Articles

For more information, please contact me here for a brief consultation.

• High-Masking Autism in Adults

• Adult ADHD Evaluation: What to Expect

Dr. Stephanie Palmer is a licensed clinical psychologist based in Austin, Texas, specializing in neurodiversity-affirming autism and ADHD evaluations for adults. She sees clients in person in the Austin area and via telehealth across 43 PSYPACT-member states. Learn more at stephanie-palmer-phd.com.

For more information,please contact me here for a brief consultation to see which services may be right for you.