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Why Is AuDHD More Common in Males? 

Posted
Updated
ByMy Patient Advice
Author: Victoria Rowe, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

AuDHD male prevalence is notably higher compared to females, with research suggesting that males are more likely to be diagnosed with the co-occurrence of autism and ADHD. While both autism and ADHD can affect individuals of all genders, the combination of these two conditions, known as AuDHD, appears to be more frequently observed in males. Understanding gender differences in autism and ADHD, and why males are diagnosed more frequently, is important for addressing the underdiagnosis and lack of support often experienced by females. 

The reasons behind the higher AuDHD male prevalence are multifaceted. Genetics, hormonal differences, and differences in the way males and females exhibit symptoms may all play a role. For example, males with autism and ADHD often display more outwardly noticeable behaviours, such as impulsivity and hyperactivity, which are more easily recognised in diagnostic assessments. In contrast, females may present with less obvious symptoms or may adapt their behaviours to better fit societal expectations, leading to underdiagnosis or misdiagnosis. 

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Why Are Autism and ADHD More Common in Males? 

Autism and ADHD are more common in males due to biological differences, genetic factors, and diagnostic biases. 

Genetic and Biological Differences 

One of the main reasons for the higher AuDHD male prevalence is believed to be genetic and biological. Males are more likely to inherit the genetic traits associated with both autism and ADHD, and differences in sex chromosomes may influence the likelihood of these conditions developing. Additionally, higher levels of testosterone in males have been linked to a higher risk of autism and ADHD traits. 

Differences in Symptom Presentation  

Autism ADHD males tend to display more externalising behaviours like impulsivity, hyperactivity, and social difficulties, which are easier to detect in diagnostic assessments. In contrast, females often exhibit more internalised symptoms, such as anxiety or social withdrawal, which can be harder to identify as part of AuDHD. This may result in fewer diagnoses of AuDHD in females, even though they may experience similar challenges. 

Understanding the AuDHD male prevalence is key to improving diagnosis and support for all individuals affected by autism and ADHD. Early intervention and gender-sensitive approaches can help address these challenges. Providers like ADHD Certify offer expert consultations to help navigate the complexities of autism ADHD males and AuDHD.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Autism Spectrum Disorder.

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Victoria Rowe, MSc
Author

Victoria Rowe is a health psychologist with a Master’s in Health Psychology and a BS in Applied Psychology. She has experience as a school psychologist, conducting behavioural assessments, developing individualized education plans (IEPs), and supporting children’s mental health. Dr. Rowe has contributed to peer-reviewed research on mental health, including studies on anxiety disorders and the impact of COVID-19 on healthcare systems. Skilled in SPSS, Minitab, and academic writing, she is committed to advancing psychological knowledge and promoting well-being through evidence-based practice.

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. 

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