A pressure bandage is necessary for a bleeding injury in order to apply direct pressure to the wound, which helps to stop or control the bleeding. This pressure helps to slow down the flow of blood, allowing the body's natural clotting process to begin and form a scab over the wound. Without a pressure bandage, it can be difficult to effectively control the bleeding, potentially leading to excessive blood loss and further complications. In some cases, severe bleeding can be life-threatening, making it crucial to stop the bleeding as quickly as possible with the use of a pressure bandage.
