Many methods have been described for control of bleeding from the liver. We have found that the technique of simply securing a 2½ cm (1-in) Penrose drain as a tourniquet around the left or right lobe of the liver is a rapid and effective method of obtaining hemostasis. The tourniquet can be used to temporarily control bleeding so individual points can be secured, or tied down onto the liver and removed later. This method has been used without complications in five patients with severe liver trauma. Serial liver function studies obtained on all patients found no significant alterations in any.