This guide is designed to give a basic understanding of pressure sores and theirprevention. It has been abridged from our booklet 'Understanding Pressure Sores andPosture', which is designed for patient or carer use and is explained inlayman's terms. It is important that you consult your doctor or nurse if you are concerned about anyof the under-mentioned health issues.
Pressure sores develop when pressure is exerted against the bony parts of the body.
This causes an interruption to the flow of blood from the small blood vessels to the skin and muscle. This can happen if you are confined to bed or chair for an extended period of time. The blood supplies the skin and muscle with the food and oxygen it requires to keep it healthy. Pressure sores can also occur if blood vessels are squeezed or twisted, which slows down or stops the flow of blood. It also happens when you slip down the bed - this is called shear.