Prevention of pressure injuries/ulcers is key because they can lead to serious complications such as infection, gangrene, amputation, and ultimately in some cases death. The image on the left shows 11 of the most common places where pressure ulcers occur. These 11 sites include the back of the head, upper spine prominence (between the shoulder blades and spine), left and right hip, lower back or sacrum (tailbone), left and right ischium bones (buttocks), back of the elbows on left and right arm, and left and right heel. Of the 11 at-risk areas mentioned above, pressure injures are most prevalent on the sacrum and the heels.