<Tr> <Th> MeSH </Th> <Td> D003668 </Td> </Tr> <Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> <P> Pressure ulcers, also known as pressure sores, pressure injuries, bedsores, and decubitus ulcers, are localized damage to the skin and / or underlying tissue that usually occur over a bony prominence as a result of pressure, or pressure in combination with shear and / or friction . The most common sites are the skin overlying the sacrum, coccyx, heels or the hips, but other sites such as the elbows, knees, ankles, back of shoulders, or the back of the cranium can be affected . </P> <P> Pressure ulcers occur due to pressure applied to soft tissue resulting in completely or partially obstructed blood flow to the soft tissue . Shear is also a cause, as it can pull on blood vessels that feed the skin . Pressure ulcers most commonly develop in individuals who are not moving about, such as those being bedridden or confined to a wheelchair . It is widely believed that other factors can influence the tolerance of skin for pressure and shear, thereby increasing the risk of pressure ulcer development . </P>

Where do you have to evaluate for pressure soars
find me the text answering this question