How Does a Decubitus Ulcer Form?


Quick Answer

Decubitus ulcers generally form when the weight of a persons body presses the skin against the firm surface of a bed or wheelchair for an extended period of time, according to Harvard Health Publications. The pressure cuts off the blood supply to the skin, injuring it and forming sores.

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Full Answer

Decubitus ulcers, or bedsores, commonly occur on people in hospitals and nursing homes, notes Harvard Health Publications. For people confined to a bed, decubitus ulcers typically develop on the hips, spine, lower back and tailbone. They may also appear on the shoulder blades, elbows and heels. For people who use a wheelchair, ulcers generally appear on the buttocks and bottom of the feet.

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