ADD versus ADHD

The "ADD" in Adult ADHD symptoms refers to the predominantly inattentive subtype cluster of symptoms. The "ADHD" refers to the condition that includes the hyperactivity-impulsive symptoms in addition to the inattentive symptoms. The particular symptoms of the predominantly inattentive subtype and the symptoms of the hyperactivity-impulsive subtype are described in the next section under "What are the signs and symptoms of ADHD". Females have predominantly inattentive symptoms without the hyperactivity symptoms more often than males. When the hyperactivity symptoms are present, the person with the symptoms is more often identified earlier in life as having a problem. Hence, boys are more often diagnosed and treated than girls.