Pressure ulcer is a signifcant problem in elderly and critically ill patients, causing pain, decreasing quality of life and leading to prolonged hospital stay. Treatment of pressure ulcer to improve health status is a cost-effective approach. So, preventing the ulcers will be economical. Pressure ulcer is considered as a damage or necrosis of skin and its layers, which happens when there is a considerable pressure over the tissues.

If the capillary arterie's pressure reaches 70 mmHg (2 times more than the normal pressure) pressure ulcer happens and depending on the depth of the ulcer, will be divided into 4 stages. The most important point for preventing the ulcers is reducing the pressure. Patients should be repositioned to relieve or minimize the tissue pressure. Considering the type of the ulcer, the necessary treatment (dressing, Antibiotic Therapy, debridement or surgery) should be performed.