This article reports data from the International Pressure Ulcer Prevalence™ survey 2006-2009 in patients with suspected deep tissue injury (sDTI). Overall and facility-acquired pressure ulcer prevalence was constant in 2006-2008 and decreased by about 1% in 2009 (P<0.001). The prevalence of pressure ulcers identified as sDTI increased to 9% of all observed ulcers in 2009, a 3-fold increase, while the proportion of stage I and II ulcers has decreased and stage III and IV ulcers remained constant. This increase may be due in part to education of staging definitions.