Inguinal hernia represents the protrusion of the abdominal cavity contents through the inguinal canal. Today there are various surgical techniques for inguinal hernia. In this study, investigators want to compare two standard methods that are regularly performed at the University hospital of Split at department of pediatric surgery. These are the ''PIRS'' operating technique laparoscopy and modified "Marcy" operating technique with open inguinal access. The choice of operating technique depends solely on the choice of a chosen pediatric surgeon. Given the fact that the child is indicated for an operation, regardless of participation in the study, there are no significant risks of participating in this study, except for possible but rare complications resulting from the peripheral venous blood draw (haematoma, soreness and pain). To carry out this study, the child should be taken (drawn) 3 peripheral venous blood samples (on day of operation, 24 hours after surgery and 6 days after surgery) from which the laboratory parameters are taken and counted (Leukocytes, C - Reactive Protein, Interleukin 6 and Tumor necrosis factor α).