External or internal bleeding is common in trauma patients and must be controlled quickly to prevent further complications. Serious injuries can prevent effective clotting and lead to significant blood loss and shock. Roller bandages are used to control bleeding, prevent contamination, and should be sterile, larger than the wound, thick, soft, and lint-free. Proper bandaging involves washing hands, extending the dressing over wound edges, covering with a bandage without touching the dressing surface, and checking for circulation if bandaged too tightly. Some injuries require special treatment like stabilizing impaled objects, transporting recovered body parts on ice, or loosely dressing open head wounds.