Final answer:
Pressure ulcers, also known as decubitus ulcers or bedsores, are injuries that arise due to constant pressure on skin areas, which can lead to tissue necrosis and serious infections if left untreated. They are most commonly found in immobile individuals, such as the elderly. Preventative care includes regularly repositioning to relieve pressure points.
Step-by-step explanation:
Pressure ulcers or bedsores are also known as decubitus ulcers. These are injuries to the skin and underlying tissue resulting from prolonged pressure on the skin. Bedsores can develop on any part of the body that is under pressure, often on bony areas such as heels, ankles, hips, and tailbone. They are most common among individuals who are immobile, such as elderly patients and those with health conditions that limit their movement. Proper care, including regularly turning patients to relieve pressure, is crucial for preventing these ulcers. If bedsores are not treated effectively, which includes the removal of necrotized tissue, they can lead to serious infections that can be life-threatening.
While bedsores are specifically linked to necrosis due to immobility, other skin conditions like eczema and acne are related to allergic reactions or clogged sebaceous glands, respectively. Calluses and corns, on the other hand, develop due to abrasive pressure on the skin.