Methodology: 165 parturients having an epidural analgesia and an episiotomy were enrolled. The perineal infiltration was randomized according to 3 equal groups (placebo, ropivacaine 0,75%, lidocaine 1%) and realised prior perineorrhaphy. then The parturient were followed during the 24 first hours. This study was designed as double blind and the study conduct was standardized in order to get only variable such as the episiotomy infiltration.