Study goals: The main goal of this study is to get insight into usefullness and advancements in treating lower back and lower limb pain using lumbar epidural steroid injection. The other goal is to gather data in order to show which functions of examinee's life were influenced the most by this procedure. Study design: Prospective cohort study in which a group of 36 examinees is being questioned before and two weeks after lumbar epidural steroid injection procedure. Examinees and methods: All patients who accepted to be questioned and underwent lumbar epidural steroid injection procedure at the Clinic of Anesthesiology, Reanimation and Intensive Care of the Osijek Clinical Hospital Center for 31 days. Materials and methods: The main questioning technique was an interview during which the interviewer put questions from Oswestry low back pain disability questionnaire and assessed the level of pain using visual analogue scale of pain. All results were statistically processed by the programm: MedCalc Statistical Software version 14.12.0 (MedCalc Software bvba, Ostend, Belgium; http://www.medcalc.org; 2014). Results: After the procedure the pain assessment level median was reduced from 8 to 3. Disability percentage assessed by using Oswestry questionnaire dropped from 47,5 % to 24 %. Out of 36 examinees which had to use analgesic therapy before the procedure, 14 of them got rid of the pain and the need to use analgetic therapy. Conclusion: For most examinees lumbar epidural steroid injection procedure resulted in significant reduction of pain and disability degree. The procedure had the strongest influence on the examinee's ability to stand and sleep, and the least influence on ability to lift heavy objects.