Underdiagnosis and Comorbid Conditions in Adult ADHD

In "Underdiagnosis and Comorbid Conditions in Adult ADHD," the discussion turns to why so many adults with ADHD remain undiagnosed, especially when anxiety, depression, or another condition gets diagnosed first.

The panel turns to how well adult ADHD is actually being diagnosed, and the consensus is not very well. Dr. Patel notes a rising wave of patients self-referring after encountering ADHD discussions online, and she welcomes that awareness while cautioning against self-diagnosis from internet checklists. She stresses that balancing clinical efficiency with thoroughness remains a real challenge, though most self-referred adults present with fairly clear, unambiguous symptoms rather than borderline cases. Dr. Feld adds that strict reliance on DSM criteria causes many adults to be missed, since the impulsivity and overactivity typical in childhood shift toward inattention, distractibility, and emotional dysregulation in adulthood, symptoms providers often overlook. Dr. Parcells identifies women ages 35 to 55 as the fastest-growing diagnosed group, explaining that the DSM criteria were never built to capture how ADHD presents in girls, women, or across different cultures.

The conversation shifts to diagnosing ADHD alongside comorbid conditions, particularly in patients already carrying an anxiety, depression, or eating disorder diagnosis. Dr. Patel describes her approach as peeling back the onion to see whether those conditions are actually downstream of an underlying, undiagnosed ADHD. She explains that savvy providers must listen for hidden symptoms described in unfamiliar terminology and trace symptom chronology back to see where dysfunction truly began. The panel notes the DSM's rigid requirement that symptoms appear before age seven fails many adults who had intelligence, support, or scaffolding that masked dysfunction until later in life. Dr. Feld shares an example of a woman whose ADHD went unnoticed for years because her sibling's more obvious symptoms absorbed the family's attention, underscoring why full histories covering education, employment, relationships, and substance use across the whole family are essential to accurate diagnosis.

Up next, in "Why Early ADHD Diagnosis and Treatment Save Lives," the panel makes a data-driven case for why early diagnosis and treatment carry consequences that extend well beyond daily symptom control.