Rupture of the spleen is probably the most common serious subparietal injury to the abdominal viscera in any age group. Its early recognition and treatment in childhood is of especial interest to those who deal with the problems of early life. Seven children with traumatic rupture of the spleen have been observed by the Surgical Service of the Children's Hospital during the period of 1937-1944 inclusive. It is our purpose in this report to record our experience with these patients and to discuss some aspects of this injury in children. Anderson1in 1939 reported 10 cases of ruptured spleen in children observed in a fifteen year period and reviewed the literature on 80 previously recorded childhood cases. The ages ranged from 4 to 15 years in her series and the sex distribution showed a male predominance of 3 to 1. All our patients were boys ranging in age from