Stereotypies are a common movement disorder that is often mistaken for tics. Briefly this is a movement that usually begins in early childhood and persists with the same movement pattern throughout childhood. The movements, which are often hand-waving, arm flapping or hand clenching, occur at times of excitement, boredom or anxiety. They are not associated with an urge and they are easily suppressed. They never interfere with activities - the child does not drop things or stop an activity for the movement to occur; in fact, activity will suppress these movements. Stereotypies are a benign movement pattern that generally does not bother the child.