Bedsores are skin damage caused by remaining in one position for too long. They can potentially be serious and they are a complication of many conditions such as cardiovascular disease and diabetes. They can also occur in other conditions which affect mobility, for example Parkinson's Disease, Motor Neurone Disease, Arthritis and Multi-system Atrophy. Bedsores are usually found on areas such as the heels, ankles, hips, buttocks, back and shoulders.
Pressure is caused by a person's weight, for example when they are sitting or lying down. Sitting or lying for long periods of time without moving causes pressure sores because blood can't circulate properly to keep tissue healthy. Bedsores are also caused by skin rubbing when someone tries to move or is moved and the sticking or dragging of the skin which can occur due to the resistance caused by mobility problems. Additionally rubbing and dragging can cause bedsore wound dressings to get knocked off, slowing down the healing process and making the problem worse.