There is no single test for attention deficit/hyperactivity disorder (ADHD). Diagnosis requires several steps and involves gathering information from multiple sources. You, your child, your child’s school, and other caregivers should be involved in observing your child. Read on for information from the American Academy of Pediatrics about diagnosing ADHD.

Your child’s or teen’s doctor will determine whether your child or teen has ADHD by using standard guidelines developed by the American Academy of Pediatrics specifically for children, teens, and young adults 4 to 18 years of age.

It is difficult to diagnose ADHD in children younger than 4 years. This is because younger children change very rapidly. It is also more difficult to diagnose ADHD once a child becomes a teen.

Children with ADHD show signs of inattention, hyperactivity, and/or impulsivity in specific ways. Your child’s doctor will consider how your child’s actions compare with that of other children...

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