An ulceration caused by prolonged pressure on the skin and tissues when one stays in one position for a long period of time, such as lying in bed. The bony areas of the body are the most frequently affected sites which become ischemic (ischemia) under sustained and constant pressure.
Death of tissue due to external pressure.
Pressure sores are areas of damaged skin caused by staying in one position for too long. They commonly form where your bones are close to your skin, such as your ankles, back, elbows, heels and hips. You are at risk if you are bedridden, use a wheelchair, or are unable to change your position. Pressure sores can cause serious infections, some of which are life-threatening. They can be a problem for people in nursing homes.you can prevent the sores by
keeping skin clean and dry
changing position every two hours
using pillows and products that relieve pressure
pressure sores have a variety of treatments. Advanced sores are slow to heal, so early treatment is best.
Ulceration caused by prolonged pressure in patients permitted to lie too still for a long period of time; bony prominences of the body are the most frequently affected sites; ulcer is caused by ischemia of the underlying structures of the skin, fat, and muscles as a result of the sustained and constant pressure.