There are three types of ADHD, each with different symptoms. The types are referred to as Inattentive, hyperactive, and 
combined attention-deficit/hyperactivity disorder.

Have short attention spans

Are easily distracted

Do not pay attention to details
Make many mistakes
Fail to finish things
Are forgetful
Don’t seem to listen
Cannot stay organized

Children with the hyperactive-impulsive type:
Fidget and squirm
Are unable to stay seated or play quietly
Run or climb too much or when they should not
Talk to much or when they should not
Blurt out answers before questions are completed
Have trouble taking turns

Interrupt others

Combined attention-deficit/hyperactivity disorder, the most common type, is a combination of inattentive and the 
hyperactive-impulsive types.