Pressure injuries are a common risk for people who are in a wheelchair or confined to bed.  When you rarely move, the pressure of your body limits the blood flow to the areas you lie or sit on.  Lack of blood flow can cause areas of skin and the tissue underneath to break down and eventually die.  This forms a wound called a pressure injury.  You may also hear pressure injuries called bedsores, pressure ulcers or sores or decubitus ulcers.