The perioperative period for many patients may be the time when they are at highest risk of developing pressure ulcers. The author’s literature search identified 24 risk factors which may be contributory factors to pressure ulcer development in the perioperative period. This article focuses on the evidence surrounding surgery duration and hypothermia. Although the findings of the studies reviewed are limited, they highlight the need for preventive interventions to limit these risks. The author concludes that pressure ulcer prevention must be a major concern for staff working in theatres.