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Can Mood Swings in ADHD Be Mistaken for Bipolar Episodes? 

PostedAugust 29, 2025
UpdatedSeptember 8, 2025
ByMy Patient Advice

Mood swings are a common symptom of ADHD, but they can sometimes be mistaken for bipolar episodes, leading to a misdiagnosis. While both conditions can involve emotional dysregulation and irritability, understanding the differences between ADHD mood swings and bipolar episodes is essential for accurate diagnosis and effective treatment. 

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ADHD Mood Swings vs Bipolar Episodes 

In ADHD, mood swings tend to be quick and reactive. A child or adult with ADHD may experience sudden bursts of frustration or excitement, often triggered by external stimuli, such as being distracted, frustrated, or unable to focus. These emotional shifts are typically short-lived, lasting only a few minutes or hours, and are often linked to challenges with emotional regulation.  

On the other hand, bipolar episodes are marked by more extreme and sustained mood shifts. In bipolar disorder, individuals experience distinct periods of mania or hypomania (elevated mood, increased energy, impulsivity) followed by depressive episodes (low mood, lack of energy, hopelessness). These episodes last for days, weeks, or even longer, and the mood shifts are much more prolonged compared to the quick fluctuations seen in ADHD. 

Misdiagnosis Risk 

Because ADHD mood swings can resemble the irritability or impulsivity seen in bipolar episodes, there is a risk of misdiagnosis. Clinicians must carefully assess the pattern, duration, and triggers of mood swings to distinguish between the two conditions.  

In conclusion, ADHD mood swings can sometimes be mistaken for bipolar episodes. Key differences in the duration and triggers of emotional shifts help clinicians make an accurate diagnosis. Early and correct diagnosis is essential for ensuring the right treatment plan. 

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.

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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. 

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