Wounds often occur in trauma, and outside bacteria and foreign bodies can easily enter the wound and cause infection. And when there is a vascular injury bleeding more, can also lead to the injured person in shock. Therefore, after the wound appears, it is necessary to prevent further infection of the wound and reduce the chance of infection; stop bleeding in time to prevent excessive bleeding in order to prevent shock. No matter what the situation appears wound, before processing, we should carefully judge the location, size, degree of contamination, vascular, muscle, tendon damage and fracture. So that different wounds do different treatment. 1, general wounds: general wounds are relatively shallow, no vascular nerve damage, easy to stop bleeding. If available, use saline to rinse the wound after the skin around the wound is disinfected with 75% alcohol, pay attention not to let the alcohol into the wound. Then a sterile dressing is applied. If there are no conditions at the time, the wound can be used clean cloth, towels, clothing and other compression wounds, and then transferred to the hospital for treatment. 2, head wounds: head injuries are more common. Once the head wound as soon as possible with sterile gauze or clean cloth compression to stop bleeding, bleeding more with hand pressure for about 15 minutes can stop bleeding. 3, finger wounds: the most common finger is a knife cut. Wounded directly with a band-aid bandage, can play the role of hemostasis and anti-inflammatory. Note the use of band-aids do not ring winding, which can easily cause finger ischemia. The correct approach is to wrap it around the finger in a spiral. In addition, band-aids should not be wrapped too tightly, too tightly compressed finger veins but not easy to stop bleeding.