 Material and methods: Thirty-two consecutive patients with no acute disease and severe chronic disorder, were qualified for inguinal hernia laparoscopic surgery. All were caucasian males, aged 24-69 and they underwent one of two surgical approaches: totally extra-peritoneal repair TEP and single incision laparoscopic surgery SILS. TEP patients created Group 1 n 17 and SILS patients formed Group 2 n 17. Total antioxidant status TAS and thiobarbituric acid-reacting substances TBARS were determined in three time points: before, one day and four days after the laparoscopic surgery. 