Objective: To evaluate the influence between the time elapsed since the onset of symptoms and the surgery of lumbar HNP in the final functional recovery of the comprehensive treatment of patients. Methods: Retrospective descriptive study of cases of HNP treated by lumbar discectomy between 2009 and 2015 by the spine team of the Hospital San José, using SPSS (version 22 of IBM) for the statistical analysis. Results: Of 110 patients subject to surgery, 54 were recruited (22 women and 32 men), between 18 and 75 years old, with an average age of 43 years. Eighty percent of patients are active workers, 76% without comorbidities. The predominant level affected was L4/L5 with 52% of the cases. The mean progression time of the symptoms before the first consultation was 27 months, the waiting time between the consultation and the surgery was 5.6 months. Conclusions: Eighty-six percent of the patients -presented good results in VAS. The Oswestry questionnaire reached a positive result in 90%, a minimum disability in 40%, moderate in 50% and maximum in 10%. No statistical relationship was achieved between any of the evaluated variables and the outcome of the surgery. Level of Evidence IV; Therapeutic Study - Investigation of Treatment Results.