Most of the wound bandage, the chance of infection is relatively small, fast recovery, a small number of head wounds, after the wound stops bleeding, open relatively better. In a variety of external force or instrument injury, surgery, burns, scalds and other factors, will be different parts of the human body, resulting in different degrees of injury, the principle of treatment is not different. Most of the wounds, such as lower extremity skin contusion wound, abdominal wounds of open abdominal surgery, arm skin burns, etc., these parts of the wound, in the postoperative suture bandage, clean suture and disinfection of the treatment, need to routinely carry out the dressing cover, protect the wound, to avoid contamination of external pollutants to avoid contamination of the wound, to reduce the chances of infection. A small number of minor head wounds, such as scalp contusion, in the clean suture, pressure bandage, until the wound hemostasis is complete, after the wound is dry, you can remove the dressing, open the wound, more conducive to healing. This is because the scalp has a richer blood supply and a relatively low chance of infection. Covering may cause bacterial growth in the hair or scalp. When a wound occurs, it is recommended to seek medical attention and regular wound dressing changes under the guidance of a medical professional.