THIS paper is based on 32 cases of traumatic rupture of the liver without penetrating wounds studied by us at Harlem Hospital. The present report covers cases observed during the period from Jan. 1, 1935 to Jan. 1, 1946, and a few scattered cases of which the records are still available which occurred prior to this period. In all the cases in this series operation or autopsy proved the liver to be injured. Subcutaneous rupture of the liver due to trauma is not so infrequent as one is led to believe by the scattered reports in the literature. In a study from this hospital of traumatic subcutaneous rupture of the normal spleen,1 covering the period from Jan. 1, 1928 to Sept. 1. 1938, it was shown that approximately 20,000 patients were admitted to the Traumatic Service of Harlem Hospital. Eighteen of these patients had subcutaneous rupture of the liver.