In this prospective clinical trial study,all the patients in Rouhani and Beheshti hospital, who underwent surgery due to unilateral inguinal hernia, during years 2015-2016 were enrolled to study ,after obtaining informed consent, the patient age range in this study is around 18 to 80 years. Exclusion criteria are: patients younger than 18 and older than 80 years, patients with history of hernia surgery, bilateral inguinal hernia, incarcerated hernia and femoral hernia. The patients were randomly divided into two different groups: the first group are patients who underwent surgery by Liechtenstein technique with mesh, and in the second group, repaired has been done by basini technique. At first, all the patient refer for hernia repair surgery, and all of them will operate by a specified surgical team. Postoperative pain intensity is evaluated based on Visual Analog Scale(VAS). After surgery and hospital discharge patients were followed for 6 month to 1 year with phone call and questionnaire through clinic.