Abstract
A retrospective analysis of 44 cases of ruptured anaeurysm of the abdominal aorta showed that only 14 were correctly diagnosed when admitted to hospital. The diagnosis was established in the ward after admission in 14 cases, in the operating theatre in one, and at necropsy in 15. The various clinical presentations are described, since early diagnosis and operation are essential to save life. Awareness of the condition and a careful examination of the abdomen are most important in making the diagnosis.