As pressure is exerted on the body, the skin is compressed, and it is more difficult for oxygen and other nutrients to reach the skin and its underlying structures. Decreased circulation and pressure can cause a pressure sore to develop in less than one day. Because of the possibility of decreased sensation and movement, those with myelodysplasia are often at high risk for skin irritation and pressure sores. Therefore, your child should frequently change positions. Prominent, bony parts of the body are the most likely places for pressure sores to form because these places have the least amount of cushioning between the bones and the skin.
Friction occurs when surfaces rub together.
Shearing and friction can both lead to skin breakdown. Both shear and friction may be prevented by using pillows for positioning and support between body parts and by avoiding dragging your child when moving him. Keeping bed linens clean, dry and free from wrinkles may also be helpful. Besides being uncomfortable, sweat, urine and feces provide a medium for bacteria growth, which delays healing. Pat the skin dry thoroughly after bathing and apply talc-free powders.