Hypovolemic shock is an extreme drop in blood volume that is a medical emergency. Learn more about its symptoms, causes, and treatment. Hypovolemic shock can be induced by various factors that lead to a significant loss of blood or fluids. Learn about hypovolemic shock , its causes, symptoms, and treatment. Hypovolemic shock is a life-threatening condition caused by losing more than 15 percent of blood or fluids, preventing the heart from pumping enough blood. Hypovolemic shock is a life-threatening condition that happens when you lose a lot of blood or fluids. Learn about the causes, symptoms, stages, diagnosis, and treatment of this emergency, and how to prevent complications.