Is ADHD overdiagnosed?
Quick answer: Rates vary by region, methods, and access to care. While overdiagnosis is debated, under‑recognition and delayed diagnosis are common in adults, especially women. Good practice confirms symptoms since earlier life, documents impairment across settings, and rules out other causes.
Adult ADHD is often missed for years, especially in women and those with predominantly inattentive signs. Variation in access to care and evaluation quality explains many differences in rates across regions.
Good practice confirms symptoms since earlier life, documents impairment in at least two settings, and rules out other causes such as sleep disorders, anxiety, depression, or substance effects. This approach helps avoid both over and under diagnosis.