Decubitus ulcers, also known as pressure sores, are caused by tissue necrosis due to a lack of nutrients in the skin and subcutaneous tissues as a result of long-term localized pressure on the patient’s body, which affects blood circulation. Decubitus ulcers occur mostly in patients who are bedridden for a long period of time with cerebrovascular accidents, fracture injuries, traumatic injuries, and other diseases that require recuperation. Decubitus ulcers are especially likely to occur because of the lack of daily care and prevention due to prolonged bed rest, coupled with the patient’s own nutritional deficiencies and physical weakness. Infected bedsores can worsen when left unattended and without proper treatment at a later stage, causing serious complications such as sepsis and osteomyelitis, which can endanger the patient’s life. The proportion of patients who die due to severe bedsore infections is as high as 50% of the bedridden population, so patients who are bedridden for a long time need to be given better care and nutritional support to prevent bedsores from occurring, and patients who have already developed bedsores should be treated promptly and effectively to prevent further deterioration.