To provide a bedsore generation risk presentation device which presents information of bedsore generation at suitable timing corresponding to a grade of body movement of a patient.

The bedsore generation risk presentation device includes: a body movement detecting means 20 to detect body movement of a person on a bed 11; a risk presentation device 40 which starts time counting when detecting body movement and presents risk information of bedsore generation when detecting elapse of a prescribed time before detecting the next body movement; and a presentation time elongation means 30 which elongates a time until presenting bedsore generation information corresponding to a grade of detected body movement.