What is a pressure ulcer?

A pressure ulcer, also known as a bedsore or decubitus ulcer, is specifically defined as a lesion that occurs due to unrelieved pressure on a particular area of the skin, often over bony prominences. This condition arises when blood flow to the skin is compromised, typically due to prolonged periods of immobility or pressure. The lack of adequate blood supply can lead to skin breakdown and the development of ulcers. Identifying the nature of pressure ulcers is important in nursing practice, as it guides prevention strategies and treatment interventions to minimize the risk and mitigate the effects of pressure-related injuries. Understanding this specific cause is crucial for caregivers, particularly when caring for individuals who may be bedbound or have limited mobility.

Other options describe different conditions that do not accurately represent what a pressure ulcer is; therefore, they do not align with the accepted medical definition.