As aforementioned, ADHD is commonly comorbid with depression.  The following contains reasons behind this comorbidity:
* Those with ADHD struggling with their symptoms
* Experiencing difficulties in interpersonal relations/interactions
* Struggling to meet the demands of everyday life

One or more of these reasons can potentially cause feelings of low self-esteem in those with ADHD.

Depression, a mood disorder associated with strong feelings of dejection and dispiritedness, is a common psychiatric comorbidity with attention-deficit hyperactivity disorder (ADHD).  Due to the overlapping characteristics of both ADHD and depression, there are likely multiple causes that contribute to this relationship.

ADHD and Depression

- Katzman, M. A., Bilkey, T. S., Chokka, P. R., Fallu, A., & Klassen, L. J. (2017). Adult ADHD and comorbid disorders: clinical implications of a dimensional approach. BMC psychiatry, 17(1), 302. https://doi.org/10.1186/s12888-017-1463-3
- Riglin, L., Leppert, B., Dardani, C., Thapar, A. K., Rice, F., O'Donovan, M. C., ... & Thapar, A. (2021). ADHD and depression: investigating a causal explanation. Psychological Medicine, 51(11), 1890-1897.
- Wilens, T. E., & Upadhyaya, H. P. (2007). Impact of substance use disorder on ADHD and its treatment. The Journal of Clinical Psychiatry, 68(8), 27720.
- Zulauf, C. A., Sprich, S. E., Safren, S. A., & Wilens, T. E. (2014). The complicated relationship between attention deficit/hyperactivity disorder and substance use disorders. Current psychiatry reports, 16, 1-11.

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