A non-progressive motor disorder with abnormalities in tone, movement and posture. It is caused by damage to the immature, developing brain (before birth or in infancy). This is the most common cause of motor disability in children. There are a number of different types of cerebral palsy and part or all of the body may be effected. The most common is spastic cerebral palsy which may present as hemiplegia (weakness on one side of the body only), diplegia (legs affected more than arms) and quadriplegia (all limbs affected). Children with cerebral palsy may also have fits, learning difficulties, visual, hearing or speech problems. Spastic cerebral palsy is usually due to hypoxic damage during labour and delivery.