What is Autism Misdiagnosis?

PostedNovember 12, 2025

UpdatedNovember 12, 2025

ByMy Patient Advice

Author: Beatrice Holloway, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Autism misdiagnosis happens when an individual is wrongly identified as having a different condition, or not diagnosed with autism at all, despite showing clear signs. This incorrect diagnosis can lead to a cascade of challenges, including ineffective treatment, emotional strain, and missed support opportunities. In many cases, a diagnostic error results from misunderstanding the wide spectrum of autism traits.

Autism is present differently in every individual, and when symptoms overlap with conditions like ADHD, anxiety, or OCD, mistakes in identification are common. A thorough autism evaluation, carried out by specialists, is key to preventing misdiagnosis and ensuring that the right kind of help is given early on.

Common Signs That Can Lead to Misdiagnosis

When autism traits are confused with other conditions, diagnosis becomes complicated. Here are some examples of how that plays out:

Emotion Regulation Difficulties

Sudden mood changes, meltdowns, or shutdowns may be mistaken for bipolar disorder or emotional instability, rather than recognised as part of the autistic experience.

Literal Thinking or Difficulty with Abstract Concepts

Struggling to understand jokes, sarcasm, or metaphors might be interpreted as a language disorder or intellectual delay, rather than a typical autism trait.

Unusual Interests or Intense Focus

A deep passion for specific topics may be misread as obsessive behaviour, especially when misunderstood by educators or clinicians.

Understanding these subtleties helps pave the way for better outcomes through accurate assessment and tailored support.

Visit providers like Autism Detect for personal consultations.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to misdiagnosis and differential diagnosis.

Beatrice Holloway, MSc

Author

Beatrice Holloway is a clinical psychologist with a Master’s in Clinical Psychology and a BS in Applied Psychology. She specialises in CBT, psychological testing, and applied behaviour therapy, working with children with autism spectrum disorder (ASD), developmental delays, and learning disabilities, as well as adults with bipolar disorder, schizophrenia, anxiety, OCD, and substance use disorders. Holloway creates personalised treatment plans to support emotional regulation, social skills, and academic progress in children, and delivers evidence-based therapy to improve mental health and well-being across all ages.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.