This retrospective study was conducted in 80 patients with diagnosis of lumbar disc herniation who underwent open lumbar discectomy at neurosurgery department of Urmia Imam Khomeini hospital from 2009 to 2012. The study variables included age, gender, the operated level, duration of low back pain and lower limb pain, smoking history, patient weight, first or recurrent discectomy and lumbar disc herniation class on MRI. Data were analyzed using student T-test and Chi-square test. No significant relationships were found between lower limb pain and other variables after surgery. The prognosis of open lumbar discectomy was poor in recurrent lumbar disc herniation, females and protruded and sequestrated disc types on MRI.