From previous investigations on the enuresis problem a distinction between primary and secondary enuresis is established. The first type concerns children who have never been dry and the second those with acquired enuresis. The theory is advanced that primary enuresis is a development problem mainly due to delayed cortical development or insufficient bladder capacity, whereas secondary enuresis is regarded as caused by an increased anxiety level. Some social and psychological factors in this theory, i.e., the mother's working conditions, the social status of the family, and the sex of the child, are empirically examined in an investigation of 82 children 7–15 years old. The results support the view that the main factors in the enuresis problem are related to the child's daily practice and in the socialization form of the famil