Understanding ADHD diagnosis How is ADHD diagnosed? ADHD -
attention deficit hyperactivity disorder - is a complex
condition and is therefore sometimes difficult to diagnose.
Because so many of the symptoms are related to child
development, they can be normal at one age and not at another.
Moreover, they may be appropriate to one child and not to
another of the same age. In many cases, a child will show signs
of the disorder in early childhood but go undiagnosed until
primary school, when the demands of schoolwork make them more
apparent. Occasionally, ADHD is not recognised until adulthood.
Even in adults, symptoms of ADHD may appear different depending
on the person experiencing them.