If the carotid artery is cut, if the carotid artery is completely dissected, usually the treatment measures and the success rate of treatment is very low, but if the carotid artery is partially cut and the wound is not too big, the patient has the probability of survival after timely first aid and treatment. The key to first aid for this situation is to play a rapid hemostatic effect within the first 2 minutes, immediately find the location of the injury bleeding and bleeding point, feel the carotid artery pulsation, with the thumb or around the clean gauze, towels, etc., quickly press down, but be sure to find the right point of pressure should be pressed on the proximal end of the carotid artery, rather than in the distal end of the 1-2cm, the pressure point, if only pressing the carotid artery, the carotid artery, the carotid artery is not the only one. Pressure point if only the rupture of the pressure is not able to play the role of hemostasis, so find the pressure point is the most critical point of first aid, and then quickly call around other people to call the 120 emergency telephone, to quickly give the patient to play the role of hemostasis before the 120 to come to the effect of the role of the patient, you can complete the first aid.