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1 产前的准备工作:解除产妇心理上的恐惧,增强产妇对分娩的信心,取得产妇的合作,检查时注意会阴有无陈旧性裂伤、瘢痕、水肿、会阴体的高低,松紧度,弹性等,临产时会阴消毒后涂用液体石腊,有利于手指扩张阴道口,可用普鲁卡因(试敏阴性者)0.5％～1％分别在两例大小阴唇做扇形封闭,然后轻按摩会阴,这样胎头娩出时肌肉松弛,不易损伤。 2 分娩时减少会阴撕裂:保护会阴不宜过早,影响胎头下降,宫缩间歇时应放松,以免压迫过久引起会
1 prenatal preparation: to lift the psychological fear of maternal and maternal to enhance confidence in childbirth, maternal cooperation, check the perineal with or without check the old laceration, scars, edema, perineal body height, tightness, elasticity Etc., during labor perineal disinfection after the application of liquid paraffin, is conducive to the expansion of the fingers of the vagina, the available procaine (test-sensitive negative) 0.5% to 1% respectively in two cases of the size of the labia doing fan-shaped seal, and then gently massage the perineum , So that when the fetal head muscle relaxation, not easy to damage. 2 to reduce perineal tear during childbirth: protection of the perineum should not be too early, affecting fetal head decline, contractions should be relaxed during the intermittent, so as not to cause excessive pressure will be