BACKGROUND: Pressure ulcers are unpleasant and painful and causes anxiety not only patient but also for the relatives. It also results in longer hospital stay and increased costs for health care sector and because of this it’s important to identify and survery the origin and what preventive measures there are to prevent pressure ulcer. AIM: To illustrate the nurses´ work to prevent the origin of pressure ulcers. METHOD: A general literary study where scientific articles were searched and found in electronic databases and through manual searches. RESULT: Ten scientific articles were analyzed and main categories were identified; nurses´ documentation, risk assessment of the patient, nutrition, use of repositioning, use of aid and skin care. CONCLUSION: Nurses knowledge about pressure ulcers is satisfactory but the knowledge is not always put in to practice, maybe it’s due to lack of staff and lack of time. The preventive interventions to prevent pressure ulcers must have a higher priority in the nurses´ practical work.