The use of trypsin (Enzar) intravenously in thrombophlebitis was reported in theBulletin of the New York Academy of Medicineof August, 1952. The following case report is intended to encourage clinical use of trypsin intravenously in traumatic wounds and compound fractures, especially in war wounds. The case described illustrates the potentiality of this substance as regards (1) removal of debris, (2) decrease of edema, (3) removal of slough, (4) lessening of drainage, (5) decrease in exudate, (6) anticoagulant and fibrinolytic action, (7) removal of medium for bacteria, and (8) speeding up of the entire healing process. REPORT OF CASE A 26-year-old white man was accidentally struck by a rifle bullet in the left arm while hunting in Maine on Oct. 26, 1952. The bullet entered the lateral aspect of the upper arm and made its exit on the medial aspect, taking a piece of skin about 3 by 2