For your information: pressure ulcers.

Pressure ulcers (also called bedsores) affect 3% to 11% of hospital and nursing home patients. Although most seen in the elderly, these ulcers can also occur in younger people who are unable to move about following musculoskeletal or neurological damage. Despite the belief that pressure ulcers are caused by neglect and inattention by hospital or nursing home personnel, even the most diligent nursing care may still not be able to prevent pressure ulcers. Increased understanding of the formation, treatment, and prevention of pressure ulcers by family members, home caregivers, and handicapped individuals can be a great help to those who suffer from these ulcers.