An abnormality of behavior characterized by one or more stereotyped and restricted patterns of behavior such as inflexible adherence to specific, nonfunctional routines or rituals, stereotyped and repetitive motor mannerisms (e.g., hand or finger flapping or twisting, or complex whole-body movements), or persistent preoccupation with parts of objects. The behaviour does not serve an observable goal. In general the movements are not aimed at the environment, but at the person itself. Stereotypical behaviour is seen especially in children with sensory, intellectual and/or cognitive handicaps.

A stereotypy is a repetitive, simple movement that can be voluntarily suppressed. Stereotypies are typically simple back-and-forth movements such as waving of flapping the hands or arms, and they do not involve complex sequences or movement fragments. Movement is often but not always rhythmic and may involve fingers, wrists, or more proximal portions of the upper extremity. The lower extremity is not typically involved. Stereotypies are more commonly bilateral than unilateral.

HP:0008759, HP:0008758

Stereotypic behavior, Repetitive or self-injurious behavior, Stereotypical motor behaviours, Stereotyped, repetitive behaviour, Stereotyped, repetitive behavior, Stereotypic behaviours, Repetitive or self-injurious behaviour, Stereotypical motor behavior, Repetitive movements, Stereotypic behaviors, Stereotyped behaviour, Stereotypic behaviour, Stereotyped behavior, Stereotypical motor behaviors

Stereotyped behaviours, Stereotyped behaviors

HP:0000733