Why are patients in hospital beds rotated every 2 hours?

Patients that are sedentary and do not move around much may develop bed sores (or sores from sitting even in a chair!) from putting pressure on the tissue. By repositioning, it allows blood flow to return to the area that the person was laying on and helps to prevent the tissue from becoming necrotic. Bed sores can develop anywhere on the body but are commonly found on the head behind the ear, the heels, and the sacrum.