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What are the risks of misdiagnosing ADHD? 

PostedAugust 28, 2025
UpdatedSeptember 8, 2025
ByMy Patient Advice
Author: Avery Lombardi, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

ADHD‘s misdiagnosis risks can have serious consequences for individuals who are misdiagnosed or undiagnosed. Misunderstanding ADHD symptoms or failing to correctly identify the condition can lead to mistreatment which may worsen a person’s symptoms or fail to address the underlying issue. Proper diagnosis is essential for effective treatment and long-term well-being. 

Discover if you have ADHD

The Dangers of Misdiagnosis in ADHD 

Misdiagnosing ADHD can lead to a range of negative consequences, affecting both the individual’s physical and mental health. Here’s how ADHD misdiagnosis can lead to: 

Inappropiate Treatment 

One of the primary risks of ADHD misdiagnosis is mistreatment. If ADHD is incorrectly diagnosed, individuals may receive treatment that does not address their actual condition. For instance, someone with anxiety or depression may be misdiagnosed with ADHD and prescribed stimulant medications, which may exacerbate their symptoms rather than alleviate them. 

Wrong Medication 

Another major risk involves wrong medication. Medications like stimulants, commonly used to treat ADHD, can have serious side effects for individuals who do not have the condition. In some cases, the wrong medication can lead to increased anxiety, insomnia, or even heart problems. Additionally, if ADHD remains undiagnosed, the person may not receive the proper treatment for their actual condition, leading to ongoing symptoms and difficulties in daily life. 

Effects on Mental Health 

Misdiagnosing ADHD can also worsen an individual’s mental health. If a person is misdiagnosis, they may feel misunderstood or frustrated, which may harm their self-esteem, increase anxiety, or depression. Moreover, untreated ADHD symptoms can lead to academic failure, social difficulties, and poor performance at work, all of which can negatively impact mental well-being. 

In conclusion, the ADHD misdiagnosis risks are significant and can cause long-term harm if not addressed. Accurate and thorough assessments are essential to ensure the right treatment and medication are provided, allowing individuals to manage their condition effectively and improve their quality of life. 

Visit providers like ADHD Certify for personal consultations and expert guidance tailored to your unique situation. 

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Differential Diagnosis of ADHD.

Discover if you have ADHD
Avery Lombardi, MSc, author for my patient advice - mypatientadvice.co.uk
Avery Lombardi, MSc
Author

Avery Lombardi is a clinical psychologist with a Master’s in Clinical Psychology and a Bachelor’s in Psychology. She has professional experience in psychological assessment, evidence-based therapy, and research, working with both child and adult populations. Avery has provided clinical services in hospital, educational, and community settings, delivering interventions such as CBT, DBT, and tailored treatment plans for conditions including anxiety, depression, and developmental disorders. She has also contributed to research on self-stigma, self-esteem, and medication adherence in psychotic patients, and has created educational content on ADHD, treatment options, and daily coping strategies.

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, author and a reviewer for my patient advice - mypatientadvice.co.uk
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.