Ulceration of tissue, usually located over a bony prominence thinly covered with flesh such as the spine, heels, elbows, shoulder blades, or hip, resulting from impaired blood circulation or pressure from prolonged confinement in bed.
Open sores that develop on the skin from sustained pressure on a part of the body; also known as bedsores or decubitus ulcers. Pressure sores occur when a person sits or lies in the same position for an extended time. The pressure squeezes blood vessels, reducing the flow of blood and nutrients to the skin. Pressure sores most often occur on the buttocks, tailbone, shoulder blades, heels, and ankles. If left untreated or if they become infected, bacteria can enter the bloodstream and lead to sepsis, which can be fatal.
Damage to the skin or underlying structures as a result of tissue compression and inadequate perfusion. Pressure ulcers typically occur in patients who are bed or chair bound. Patients with sensory and mobility deficits (e.g., individuals with spinal cord injury, stroke, or coma); malnourished patients; patients with peripheral vascular disease; hospitalized elderly patients; and nursing home residents are all at risk. Some evidence also suggests that incontinence is a risk factor.