According to Chinese medicine, “pressure sores” are caused by prolonged bed rest, resulting in the loss of blood flow and skin nourishment, or by friction and poisoning of the skin, and are characterized by broken skin and long-lasting wounds. People with bedsores usually have two main characteristics, namely “prolonged lying” and “prolonged sitting”, because the skin is compressed for a long time, blood circulation is blocked, and the skin is not supplied with nutrients, which leads to necrosis and wounds. 1.People who are bedridden for a long time, such as those who are in coma, paralyzed, have perceptual impairment, and those who suffer from stroke, cancer, pulmonary edema, etc. and need bedside care. 2.Patients who sit in wheelchairs for a long time are also typical. For example, paraplegics and hemiplegics who sit in wheelchairs for a long time are very prone to bed sores due to the long-term contact between their hips and tailbone areas, and most of them are cavity type bed sores. 3. Patients who are less tolerant of skin damage are more likely to develop bedsores because of poor skin elasticity, lack of protection for bony protrusions, and poor damage repair ability. 4. Patients with long-term skin irritation The most common patients with incontinence suffer from long-term skin irritation due to moisture and dirt contamination, leading to infection and breakouts. 5. Excessive pressure on the body This category is relatively rare, such as overly obese patients, who are prone to sweating because of their greater weight, reduced mobility, and a combination of factors that cause bedsores on the skin. For people with a high incidence of bedsores, caregivers must be diligent in turning and changing positions, keeping the skin clean and dry, and at the same time boosting the patient’s diet and nutrition to maintain a good living and recuperation environment so that bedsores can be avoided as much as possible.