How do know if your child has adhd?

History/testing: Such diagnoses require a significant review of history, level of function, exam and a variety of tests. Alternative medical, emotional and behavioral conditions can mimic these conditions. Consult your pcp to start the process.

You don't: YOu can suspect it, if your child is having behavioral or attentional problems. But then you need to have your child professionally assessed, to determine if it's ADHD.