Introductions: Pressure ulcers (PUs) represents an undesirable complication during hospitalization. Aim: Retrospective data analysis to verify the prevalence of PUs since 2015 (since the mandatory registration of the PUs an adverse event) by principal dia­gnosis, type of surgery and length of hospital stay in the period 2015–2021. Sample and methods: Retrospective analysis of data from the hospital information system (HIS), at 0.05 level of significance (T-Test) with the variables: age, number of pressure ulcers, principal dia­gnosis, operation, length of hospitalization and prevalence of COVID-19 to length of hospitalization. Results: A total of 2,350 PU cases in 1,539 patients (1.52 PUs/patient) were registered in the HIS, and 930 (40%) patients were admitted to hospital with PUs. The most common locations of PUs were: heel (33%), sacrum 6% less, buttocks (17%). Between 2015 and 2021; 17,247 patients were operated on, of whom 289 had a Pus. The most common principal dia­gnosis in the occurrence of PUS was femoral neck fracture (14.35%) and neurological (9.09%) or oncological disease (12.03%). The incidence of PUs was surprising in patients with ileal conditions (11.57%). COVID-19 was found in 163 patients in 2020 and 2021, six of whom had PUs and prolonged hospitalization. Conclusion: It is important to view the health status of people with chronic wounds and PUs in a comprehensive manner and to develop an individualized care plan to improve patients‘ lives and chances of recovery.