OBJECTIVES The measurement of the degree of pain and the exploration of influencing factors to compare data about the evaluation of postoperative pain given patients and nurses on a numeric scale. The connection between BMI index, age and verification of need for opiate associated with BMI was evaluated. Our aim was to measure whether nurses underestimate the level of pain in patients as well to show the advantages of multimodal analgesia and the additional opiate needs. METHODS The survey was conducted between the 1st November and 15th of December in 2013 among 40 patients who had surgery and 10 nurses dealing with them afterwards. Data was collected at the sub intensive ward of the Department of Obstetrics and Gynaecology, University of Pécs. The analysis of results was performed with MO Excel 2007 program. For data analysis absolute and relative frequency, Chi-square test, two-sample t-test, correlation and linear regression analysis besides the significance level p<0,05. Results were presented with main confidence interval. RESULTS Nurses underestimated the patients’ pain value (p=0,011). Tight and continuous connection with the patient’s vital parameters had not been proved (p>0,05). Connection was not found between the age and BMI index of the patients (p=0,134), however in case of the mostly overweight sample group the need for opiate wasn’t increased (p=0,62). It is shown by the survey that open surgeries aren’t result in higher pain value which was not significant after adequate analgesia (p>0,05). The benefit of multimodal therapy in analgesia had been proved, although it had not resulted in decreased need for opiate (p=0,807). CONCLUSIONS It is essential to conduct a survey on the knowledge of healthcare workers in the future and to organize possible workshops and create protocols. Moreover, pain should be monitored minimum three times a day (Shugarman LR., 2010, Canada).