Bedsores, also called pressure sores or pressure ulcers, are ulcers (sores) caused by prolonged pressure or rubbing on vulnerable areas of the body, such as bony or cartilaginous areas that are prone to moisture and friction. Decubitus ulcers are pressure ulcers that occur when the patient lies on his or her back for long periods (Wilhelmi and Neumeister, 2005). Examples of areas vulnerable to pressure ulcers include the hips, ankles, heels, elbows, ears, and pressure points on the lower back (near the tail bone, sacrum, or iliac crest). Pressure sores are also caused by prolonged sitting, or certain patterns of sitting behaviour