Is ADHD Real? What the Medical Community Says Do you know someone who questions whether ADHD exists? Or do you have doubts yourself?

All the major medical groups -- including the American Academy of Pediatrics, American Medical Association, American Psychiatric Association, and National Institutes of Health -- recognize attention-deficit hyperactivity disorder as a valid condition that should be treated.

But there are some people, including some doctors and therapists, who disagree.

Type “Is ADHD fake?” or “ADHD critics” into a search engine, and you’ll get pages of articles saying it’s a “controversy.” These include books and articles in mainstream media.

Some say the problem starts with how the condition is diagnosed.

ADHD in Children Slideshow