In a pressure injury, a localized area of injury to the skin may develop when soft tissue is compressed between a bony prominence and an external surface for a long period of time.
Pressure ulcers are skin breakdowns that occur in areas of the body that are compressed from prolonged bed rest, wheelchair use, or cast use. When you are immobile, unconscious, confined to bed, or unable to feel pain, pressure injuries may occur. When pressure permanently cuts off the blood supply to the skin, a pressure injury is one result. Skin cells die when there is inadequate blood flow to them. This first manifests as a painful, red area. Anyone can develop a pressure ulcer, but those over the age of 70 are more likely to struggle with mobility and have skin that is more vulnerable to injury from dehydration and other factors.
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