Pressure sores, also called decubitus ulcers, are caused by long-term pressure on local tissues or skin, resulting in local ischemia, hypoxia, malnutrition, and finally tissue necrosis. Therefore, it is important to avoid pressure sores in daily life by diligently observing, scrubbing, turning, massaging, tidying and replacing, avoiding long-term pressure on local tissues, and avoiding the stimulation of moisture and friction and excrement. To promote local blood circulation, improve the nutritional status of the body, and actively treat the primary disease, you can carefully observe the patient lying on his back in bed and do turning every two hours, and at the same time perform local massage and cleaning of the body.