The wound extends through all of the layers of the skin. It is a primary site for a serious infection to occur. The goals and treatments of alleviating pressure and covering and protecting the wound still apply as well as an increased emphasis on nutrition and hydration. Medical care is necessary to promote healing and to treat and prevent infection. This type of wound will progress very rapidly if left unattended.
Infection is of grave concern.
IV A Stage IV wound extends through the skin and involves underlying muscle, tendons and bone. The diameter of the wound is not as important as the depth. This is very serious and can produce a life threatening infection, especially if not aggressively treated. All of the goals of protecting, cleaning and alleviation of pressure on the area still apply. Nutrition and hydration is now critical.