压疮是指因各种相关因素引起的局部组织持续缺血、缺氧,营养缺乏,致使皮肤失去正常功能,而引起的组织破损和坏死。当人体在仰卧位时,枕骨粗隆、肩胛部、肘部、脊柱体隆突处、骶尾部、足跟部均是易受压部位。当持续性的垂直压力超过毛细血管压,或加摩擦力和剪切力因素,组织会发生缺血、溃烂坏死。因此患者卧床时是压疮发生的最常见因素。1临床资料我科2013—2014年股骨颈骨折和股骨粗隆骨折卧床病 Pressure ulcer is due to a variety of related factors caused by local tissue continued ischemia, hypoxia, lack of nutrition, resulting in loss of normal skin function, which caused tissue damage and necrosis. When the human body in the supine position, occipital trochanter, scapula, elbows, spinal carina, sacrococcygeal, heel are vulnerable parts. When the sustained vertical pressure exceeds the capillary pressure, or friction and shear forces, the organization will be ischemic, ulcerative necrosis. Therefore, bed rest is the most common cause of pressure ulcers. 1 Clinical data of our department 2013-2014 femoral neck fracture and intertrochanteric fractures bedridden