Objective: The objective of this study is to find the prevalence of failed back surgery syndrome in the University Hospital of Split over the past 6 years (2013-2018). Additionally, the objective was the find average age, days spend in the hospital, whether there was a difference in prevalence between males and females, and finally the prevelance of neurological deficites amongst the patients. Subjects and Methods: The data was taken from the hospital records from the years 2013 to 2018. The inclusion criteria for failed back surgery syndrome was a patient to have 3 or more spinal surgeries, including laminectomies, hemilaminectomies and microdiscectomy. The patients had 2 previous unsuccessful operations and together with the current operation (done at the same anatomical level) totaled to 3 operations. Results: 170 patients were collected over the six years studied (from 2013- 2018). The results showed that a 7% prevalence of Failed Back Surgery Syndrome in the University Hospital of Split. Along with this the average age was 54, but the range was from 21 to 83 years old making the average not a reliable reference. Additionally, results showed similarities between males and females, with 54.71% males and 45.29% female. There was a 28.24% prevalence of neurological deficits found. Conclusion: There is a prevalence of 7% of Failed Back Surgery Syndrome at the University Hospital of Split. In the assessment of gender, age, lengh of hospital stay, and neurological deficits there were no proven significant distinguishing features. This implies that there remains more to be studied about FBSS and its cofactors to aid a standardized diagnosis and approach to this disease.