On the other hand, when our surgery causes blood to leave the vascular system, blood becomes a highly toxic and injurious agent itself. When it intrudes our tissues and body cavities, blood causes a severe inflammatory response that can even be lethal to surrounding cells. Post-cardiac surgery, we try to evacuate all blood and clots from the pericardial space through chest tubes, only aided by gentle suction. In a considerable number of cases this method is only partial successful and very often variable amounts of blood and clots remain inside. Besides the chance of acute or late cardiac tamponade, blood can cause several inflammation related complications like adhesion formation. Isn’t it strange that we do not take the necessary and effective measurements to definitively clean up our operation site from this?