Summary: In 1190 children consecutively admitted to hospital, inquiries were made concerning head injury and information on the subject was obtained in 1134. In the entire material, 16 per cent replied in the affirmative and no difference in the incidence between boys and girls was observed. In patients admitted on account of neurological or severe psychiatric conditions the incidence was significantly greater, viz 28 per cent as compared with 12 per cent in the group of patients without neurological or psychiatric conditions.