Recent advances in the management of peptic ulceration in adults have resulted in a greater interest in this problem in children. The occurrence of peptic ulcer in children is being recognized more frequently,1 due to improved methods of investigation and greater awareness that peptic ulcers can occur in children. It is difficult to evaluate the true incidence of peptic ulcer in children; the number of reported cases is far less than the actual incidence, since not all cases are hospitalized. An incidence of 0.8% to 2.1% has been reported.2 Twenty-eight children were treated for peptic ulcer in St. Joseph's Hospital, Toronto, from January 1961 to June 1968. It has been possible to follow 27 of the 28. There were 23 duodenal ulcers and three gastric ulcers; in addition, two children had no radiological evidence of an ulcer but were diagnosed clinically. All children were 16 years of age