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In operations of inguinal hernias, different techniques of anesthesia administration are used, but in the last years, there has been a great interest in the local-regional anesthesia, primarily in epidural. The aim of the study was to ascertain the efficiency and safety of administration of minor anesthetics’ concentrations in epidural anesthesia in operations of inguinal hernias. The assessment of patient’s stability by monitoring of vital functions included: noninvasive measuring of blood pressure, pulse, ECG, respiratory frequency and diuresis. Also, in order to assess the effect of anesthetic action of lidocaine, we followed up the onset and ending of sensory blockade, motor blockade, pain intensity during surgical intervention with the use of VAS.There was no statistically significant difference regarding the onset and ending of sensory blockade between greater (20 ml 2% lidocaine) and minor concentrations (20 ml 1,5% lidocaine) administered epidurally. However, all the examinees to whom 2% lidocaine was administered, had the motor blockade which occurred after 14,37 ±1,04 min, and was in duration of 110,45±13,20 min. Only 20% of patients to whom 1,5% lidocaine was administered had the motor blockade, in whom it occurred after 11,16± 2,02 min, and was in duration of 100,30 ±8,40 min.Systolic pressure significantly decreased between the fifth and tenth minute after 20 ml of 2% lidocaine administration compared to the group to whom 20 ml of 1,5% lidocaine was administered, with statistical significance (p