The aim of this study was to describe pressure ulcer prevalence and prevention interventions in hospital care in Sweden based on nationwide surveys conducted over a 10-year period. All Swedish hospitals were invited to participate in annual pressure ulcer prevalence surveys during the period 2011-2020. The data collection protocols included gender, age, skin assessment, risk assessment, and preventive interventions. In total, more than 130,000 patients were included in the ten prevalence surveys. The prevalence of pressure ulcers in Swedish hospital patients decreased significantly from 17.0 %to 11.4% between 2011 and 2020 and hospital-acquired pressure ulcers decreased from 8.1% to 6.4% between 2018 and 2020. There was no significant decline in medicaldevice-related pressure ulcers during the same period. The proportion of patients who were risk and skin assessed increased, as did the use of pressure-reducing mattresses, sliding sheets, heel protection, and nrepositioning plans. This study shows that the implementation of a national patient safety program has had an impact on the nationwide prevalence of pressure ulcers in hospital care and the occurrence of prevention strategies. However, one in ten patients in Swedish hospitals still suffers from pressure ulcers. Further improvements can be made.