Actively treat the primary disease and complications. I. Dehydration 1. When isotonic dehydration has hypovolemic shock, simple rehydration is forbidden. 2. Early supplementation of 5% or 10% glucose solution is contraindicated in hypotonic dehydration. 3. When hypertonic dehydration occurs with severe hypernatremia, rapid input of hypertonic sugar water is contraindicated to avoid aggravating cerebral edema. Second, hypovolemia Hypovolemic shock, mainly due to massive blood or fluid loss and cause a sharp decrease in effective blood volume caused by a drop in blood pressure and microcirculatory disorders, so the first measure of treatment is to quickly stop bleeding and correct fluid loss. Therefore, various causes of bleeding or fluid loss, such as trauma bleeding should be immediately bandaged or compressed wounds to stop bleeding and immediately go to a nearby hospital, the more serious cases should be quickly sent to a hospital with better medical conditions (i.e., hospitals that can do all kinds of major surgery and transfusion treatment) for further treatment, so as not to delay the disease.