Attention-deficit/hyperactivity disorder and chronic pain: a scoping review of epidemiology, clinical phenotypes, mechanisms, and treatment
Abstract
Introduction: Emerging evidence suggests a potential association between attention-deficit/hyperactivity disorder (ADHD) and chronic pain; however, extant findings are dispersed across disciplines and have not yet been comprehensively synthesized. This scoping review aimed to systematically map the epidemiological evidence, clinical phenotypes, proposed neurobiological mechanisms, and reported therapeutic interventions related to comorbid ADHD and chronic pain.
Methods: A comprehensive literature search was conducted in PubMed, PsycINFO, and the Cochrane Library from database inception to December 28, 2025. Human studies examining the association between ADHD (diagnosed or symptom-defined) and chronic or recurrent pain were also included. Fifty studies met the eligibility criteria, including observational studies (cross-sectional and longitudinal), case reports and series, and one interventional study.
Results: Epidemiological studies have consistently reported significant associations between ADHD symptoms or diagnoses and chronic pain in both the general population and clinical samples. Higher ADHD symptom burden was associated with greater pain severity and pain-related functional impairment. Comorbidity was observed not only in widespread pain syndromes, such as fibromyalgia, but also in site-specific conditions, including chronic low back pain, orofacial pain, and migraine. Proposed mechanisms involve dopaminergic and noradrenergic dysfunction affecting motor…
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