ADHD (Attention-Deficit/Hyperactivity Disorder) can be diagnosed at any age, but the symptoms usually become noticeable in childhood, often in early elementary school years. In order to diagnose ADHD, a comprehensive evaluation is typically conducted by a healthcare professional, such as a psychologist or psychiatrist, who specializes in ADHD diagnosis and treatment.
The evaluation usually involves gathering information from different sources, including the person being evaluated, their parents or caregivers, and teachers. The healthcare professional will assess the person’s behavior, attention, and other related symptoms, and may use different rating scales and diagnostic criteria to make a diagnosis.
It’s worth noting that ADHD is a neurodevelopmental disorder that can affect people throughout their lives, so it’s possible to receive a diagnosis as an adult even if the symptoms weren’t recognized or diagnosed earlier. If you suspect that you or someone you know may have ADHD, it’s best to speak with a healthcare professional who can provide a comprehensive evaluation and appropriate treatment recommendations.