In the side-lying position, the most common areas of pressure ulcers are the auricle, the head of the shoulder, the elbow joint, the hip, the hip joint, and the outside of the calf, the outside of the ankle, and the outside of the foot. Clinical once encountered a patient, the whole body 28 pressure ulcers, almost the whole body pressure ulcers, auricle basically all the pressure bad, but at that time the pressure ulcers are not very deep, only the auricle shape, this belongs to the serious infection. Once the auricle pressure bad, the ear cartilage will occur osteomyelitis, bacteria will quickly infect the auricle, shoulder head pressure sores are caused by lying still for a long time.