Over the last century, our understanding of cerebral palsy has broadened. For example, we now know that it results more commonly from prenatal abnormalities than from perinatal difficulties. Yet, in most cases we are still no closer to understanding the operant mechanism of injury or how the injury results in the expressed motor disorder. Hopefully, the strides being made in neurodevelopmental physiology and neurotransmitter communication will help elucidate the mechanism of injury in cerebral palsy and thereby lead to methods of prevention. Meanwhile, comprehensive clinical evaluation and treatment and periodic reassessment will help tailor strategies to the individual needs of the child. This should enable the child with cerebral palsy to optimize his or her function in society.