Final answer:
Ulcerations often covered by a callus and found over bony areas due to pressure are known as bedsores or decubitus ulcers. They are caused by long-term pressure which restricts blood flow and leads to tissue necrosis. These are most commonly seen in patients who are immobile, such as the elderly.
Step-by-step explanation:
Wounds that are often covered by a callus and located over a bony area of pressure are typically known as ulcerations. These wounds, frequently referred to as bedsores or decubitus ulcers, arise from prolonged pressure, especially in individuals who are immobile for extended periods, such as the elderly or bedridden. The pressure impedes blood flow, causing tissue death and sometimes leading to fatal infections if left untreated.
Unlike calluses that result from friction, such as when ill-fitting shoes cause repeated rubbing against the skin, ulcerations involve loss of skin and deeper tissue, usually over bony prominences. Hospitals and long-term care facilities commonly implement patient-turning schedules to prevent bedsores by relieving pressure. When recognized early, bedsores are treatable through a variety of medical interventions.