How Is Bipolar Disorder Distinguished from ADHD?

PostedSeptember 10, 2025

UpdatedSeptember 10, 2025

ByMy Patient Advice

Author: Harriet Winslow, BSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Bipolar vs ADHD diagnosis can be challenging due to the overlap in some symptoms, particularly inattention and impulsivity. However, there are key differences that healthcare providers look for when distinguishing between the two conditions. Bipolar disorder is characterised by extreme mood swings, including manic episodes, whereas ADHD primarily involves ongoing attention difficulties, hyperactivity, and impulsivity without the significant mood shifts seen in bipolar disorder.

In bipolar vs ADHD diagnosis, the presence of mood swings is a crucial factor. Individuals with bipolar disorder experience dramatic mood changes, from high-energy manic episodes to deep depressive states. In contrast, ADHD symptoms tend to be more stable over time, with inattention and impulsivity persisting without such mood fluctuations. While both conditions may involve inattention comparison in tasks, the context and nature of the symptoms differ.

Common Symptoms

Inattention:

Both ADHD and bipolar disorder can cause issues with focus, but in bipolar vs ADHD diagnosis, the inattention seen in ADHD is usually consistent, while in bipolar disorder, it may occur during depressive or manic phases.

Manic episodes:

In bipolar disorder, manic episodes are characterised by an unusually high mood, energy, and impulsive behaviour, which are not typically seen in ADHD.

Mood swings:

Mood swings in bipolar disorder are severe and last for extended periods, unlike the more stable mood observed in ADHD.

Proper bipolar vs ADHD diagnosis requires a thorough clinical evaluation, as both conditions require different treatment approaches.

Visit providers like ADHD Certify for personal consultations and expert advice tailored to your needs.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Rule-outs for other conditions.

Harriet Winslow, BSc

Author

Harriet Winslow is a clinical psychologist with a Bachelor’s in Clinical Psychology and extensive experience in behaviour therapy and developmental disorders. She has worked with children and adolescents with ADHD, autism spectrum disorder (ASD), learning disabilities, and behavioural challenges, providing individual and group therapy using evidence-based approaches such as CBT and DBT. Dr. Winslow has developed and implemented personalised treatment plans, conducted formal and informal assessments, and delivered crisis intervention for clients in need of urgent mental health care. Her expertise spans assessment, treatment planning, and behavioural intervention for both neurodevelopmental and mental health conditions.

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.