The subject of the invention is a method for automatic control of blood from the damaged vessel to be used in a dressing system provided with a tourniquet, a bandage and the first compression element. The method comprises the stage of applying pressure exceeding the systolic blood pressure of the patient via the compression element to a lesion site, so that the blood stops flowing through the damaged vessel, then the stage of reducing the pressure. In the pressure reduction stage, the pressure is reduced by a predetermined drop value, wherein if no blood flow is detected in the damaged vessel, then pressure reduction stage is repeated and if blood flow in the damaged vessel is detected, the pressure reduction stage is interrupted for a pressure drop time. Moreover, the subject of the invention is an automatic compression bandage system according to the invention is provided with a tourniquet with a compression element adapted to compress the damaged blood vessel at the lesion site, provided with an interface for electronic pressure control, and a CPU provided with a memory, connected to the compression element interface. The system is further provided with means for detecting the blood flow through the compressed vessel and means adapted for detecting the blood flow from compressed vessel. Moreover, the subject of the invention is a tourniquet to be used in the system according to the invention, provided with a controlled compression element and comprising a blood flow sensor and a blood loss sensor.L'objet de l'invention est un procédé de régulation automatique du sang dans un vaisseau endommagé devant être utilisé dans un système de pansement pourvu d'un garrot, d'un pansement et d'un premier élément de compression. Le procédé comprend l'étape consistant à appliquer une pression dépassant la pression sanguine systolique du patient par l'intermédiaire de l'élément de compression à un site de lésion, de sorte que le sang s'arrête de couler à travers le vaisseau endo
