Hemorrhage will have cold limbs, general weakness, blurred consciousness, etc., which can be life-threatening in serious cases. Hemorrhage will reduce the effective circulating blood volume of the organism, so that the blood pressure of the organism will be lowered, myocardial ischemia, weakening of cardiac function, etc., which will endanger life and health in serious cases. When the volume of blood loss reaches 800ml, symptoms such as pallor, sweating, general weakness, cold limbs, shortness of breath, and weakened pulse will appear. When the volume of blood loss reaches 1500ml, insufficient cerebral blood supply will occur, resulting in dizziness, blurred consciousness, confusion and other symptoms, or even coma. When hemorrhage occurs, it is necessary to actively consult the doctor and follow the doctor’s instructions for reasonable treatment.