DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Sacral pressure sore. Close up of an irregular ulcer on the sacral area, between this patient's buttocks. The dark brown areas (at centre) are the deepest erosions in the pressure sore, which are sloughing off dead tissue. The ulcer is producing a thick fluid which has become infected by bacteria appearing as a green growth at the irregular margins. The whole of this area is raw and is hardly healing at all. Normal skin can be seen at top right. Pressure sores develop on the skin of patients who are bedridden, unconscious or immobile. Prevention is better than cure. Careful attention to at-risk areas and regular turning is often enough. Chronic sores may need skin graft.
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