How Do Overlapping Symptoms Affect Diagnosis of ADHD and Depression?

PostedSeptember 3, 2025

UpdatedSeptember 8, 2025

ByMy Patient Advice

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

The overlapping symptoms ADHD depression can complicate the diagnosis of both conditions. Many of the signs of ADHD, such as difficulty concentrating, irritability and restlessness, are also common in depression. This symptom overlap can make it challenging for healthcare professionals to distinguish between the two, leading to diagnostic confusion.

Both ADHD and depression involve issues with focus, energy levels and emotional regulation, which can mask the true nature of each condition. For example, a person with ADHD might display low energy and poor concentration, which are also common in depression. Conversely, an individual with depression may struggle with organisation and procrastination, symptoms often seen in ADHD. This symptom overlap can lead to delays in receiving an accurate diagnosis, which may prevent effective treatment.

Common Symptoms and Diagnostic Confusion

Inattention and lack of focus

Both ADHD and depression can cause difficulties with attention, making it difficult to differentiate between the two.

Emotional regulation issues

Mood swings, irritability and feelings of hopelessness are prevalent in both conditions, leading to diagnostic challenges.

Fatigue and low energy

While fatigue is a hallmark of depression, it can also appear in individuals with ADHD, contributing to confusion in diagnosis.

Recognising the overlapping symptoms ADHD depression is crucial for healthcare providers to accurately diagnose and treat both conditions, ensuring individuals receive the appropriate care.

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 Depression.

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.