Background: Approximately 75% men have low-back pain, and most of them come to get treated for acute low-back pain and cure without operation. Conservative treatment procedures, including surgery, have never been evaluated carefully. Objectives: To assess the efficacy of conservative treatment in Lumbar Spinal Stenosis (LSS) and how to choose the patient for conservative treatment. Material and Methods: As many as 30 patients (9 men and 21 women) who were undergoing treatment between January and December 2014 in Orthopaedic and Traumatology Department, Faculty of Medicine, Airlangga Unversity-dr. Soetomo General Hospital, Orthopaedic and Traumatology Hospital (RSOT) Surabaya were recruited for the study. The mean of age of the participants was 51.9 years LSS (diagnostic with plain radiography and MRI) without indicated operation and they were treated conservatively with TENS, WSD, and ultrasonography and NSAIDs for 6â€“12 weeks. We evaluate VAS and ODI and assigned scores to predict the efficacy of conservative treatment. Results: VAS decreased significantly in patients with mild and moderate VAS prior to conservative treatment 68.1% (p < 0.001). ODI improved significantly in a patient with a mild and moderate disability prior to conservative treatment 87.5% (p < 0,000). On the basis of scores assigned to predict the efficacy of conservative treatment, we fixed sensitivity and specificity at cut point Â£ 3.50. Conclusions: Conservative treatment can be effective in some LSS patients if the indications are correctly presented.