Background: Pressure ulcers are an unnecessary injury that still occurs to a greater extent in the healthcare which causes great suffering for the affected patient and high costs to society.

Aim: The aim of the study was to describe the nursing care to prevent pressure ulcers in patients who are at risk of pressure ulcers.

Method: This was a literature review study based on 11 quantitative studies. Systematic article search was made in the databases Cinahl and Pubmed as well as manual article searches. Main theme and subthemes were designed based to Friberg's (2012) analysis model based on their similarities and /or differences.

Results: Two main themes were identified. The main theme Individual preventive measures with subthemes, pressure relief and pressure distribution and to support the normal function of the skin. The main theme combined preventive measures with subthemes pressure relief program with different components and theoretical knowledge and practical skills.

Conclusion: A pressure ulcer is an adverse event that can be avoided effectively with the preventive measures, whether they were implemented as individual preventive measures or combined with further measures. The main findings in the study illuminated a number of preventive measures such as risk assessment, nutritional assessment, skin assessment and skin care, classification of pressure ulcers, skin care and incontinence care, pressure relief and pressure distribution, position change and mobilization, digital sensors and most importantly staff training demonstrated to have good effect to prevent pressure ulcers.