So, both boys and girls can have ADHD and it is believed that the prevalence is about equal.  But, it appears that boys are diagnosed more often.  The reason for that may because the type of ADHD in boys is the hyperactive type while the ADHD in girls is that of inattention (teachers will not complain about a quiet girl not paying attention but will complain about a boy who is stirring up trouble and is loud).

Symptoms::
-hyperactive/impulsive type:
-inatentive type.