The main points of pressure sore prevention are as follows: 1. Patients who are bedridden or wheelchair-bound for a long time need to decompress or take decompression measures every 2 hours, that is, turn over; 2. Patients should be scrubbed clean to reduce or avoid stain contamination leading to pressure sores; 3. Mattresses are used, and there are dynamic and static mattresses. A deflating inflatable tube is connected to the air mattress, which is deflated for 2 hours or half an hour to relieve pressure; 4. If patients have diarrhea or fecal incontinence, the patient’s fecal and urinary stains contaminate the sacrococcygeal or perineal skin, which also makes it easy to get pressure sores and requires treatment from a doctor’s medical perspective to control the state of fecal and urinary incontinence.