The skeletal age of thirty children with cerebral palsy was studied and related to the chronologic age, height and weight. In 10 cases the thyroid function was evaluated. The results allow the following suggestions: 1) the skeletal age and the somatic development were proportionally delayed and both probably related to the poor nutritional state of the children; 2) the proportionality between skeletal age and weight among the male children, and between the skeletal age and weight as well as height among the female children, were altered; 3) the disorganizing action of the cerebral palsy should not depend on hypothyroidism; 4) the noted alterations are more conspicuous among the male children.