What is the most effective method to control external bleeding?

Direct pressure is recognized as the most effective method to control external bleeding because it promotes clotting and reduces blood flow to the affected area. When direct pressure is applied to a wound, it helps to compress the blood vessels, which can minimize blood loss by allowing the body's natural clotting mechanisms to take action. The pressure can effectively stem the flow of blood, especially in cases of minor to moderate bleeding, and is often the first response recommended in first aid situations.

While elevation can aid in controlling bleeding by reducing blood flow to the injury site, it is most effective when used in conjunction with direct pressure. Pressure bandages can also be helpful in maintaining pressure on the wound after initial control has been established. Cold compresses might be used to reduce swelling or numb pain, but they do not directly address the mechanism of stopping bleeding. Therefore, applying direct pressure remains the primary and most effective emergency response for managing external bleeding.