First Aid Training - Wounds and bleeding
Any break in the surface of the skin (wound), will not only allow blood and other fluids to be lost, but allow germs to enter the body. If the wound is minor, the aim of the first aider is to prevent infection. severe wounds may be very daunting to deal with but the aim is to prevent further blood loss and minimise the shock that could result from the bleeding.
Some closed wounds such as bruising could indicate an underlying injury and first aiders need to be aware of the cause of injury as this may alert you to a more serious condition, such as internal bleeding.
Any open wound is at risk of becoming infected, it is important to maintain good hygiene procedures to guard against prevent cross infection between yourself and the casualty.