The use of tourniquet is mainly in the way of binding, different parts of the bleeding using tourniquet binding method also exists a certain degree of variability. In the field first aid mainly with rubber tourniquet or cloth tourniquet, when using the tourniquet to be placed in the limb hemostatic parts, such as upper limbs on the upper arm of the upper 1/3, lower limbs on the upper thigh of the middle 1/3. And you need to put a layer of soft cloth, such as towels, masks, etc. to protect the skin on the site of the tourniquet. In the use of tourniquet, but also pay attention to the strength of the bundle, should not be too loose or too tight, otherwise it may affect the effect of hemostasis, and the use of tourniquet should pay attention to avoid using the head, neck and trunk position, so as not to cause nerve damage. As the tourniquet is mostly used in first aid to relieve bleeding, and can not play a fundamental therapeutic effect, in the correct use of tourniquet, the need to send the patient to the hospital in a timely manner for treatment, so as to avoid excessive blood loss triggered by shock, endangering the life of the patient.