A pressure sore is an area of the skin that breaks down when something keeps rubbing or pressing against the skin.
Pressure sores occur when there is too much pressure on the skin for too long. This reduces blood flow to the area. Without enough blood, the skin can die and a sore may form.
You are more likely to get a pressure sore if you:
- Use a wheelchair or stay in bed for a long time
- Are an older adult
- Cannot move certain parts of your body without help
- Have a disease that affects blood flow, including diabetes or vascular disease
- Have Alzheimer disease or another condition that affects your mental state
- Have fragile skin
- Cannot control your bladder or bowels
- Do not get enough nutrition