除了断脐外,在正常分娩中最常做的手术就是会阴切开术,适时地进行会阴切开术均有益于母婴预后.在产房中,对有并发症、合并症的患者,往往给予重视,而对正常分娩的产妇则重视不够,在强调会阴保护时却又忽视了会阴切开术在产科优生中的作用.对产妇来讲,会阴切开术既可避免不规则的会阴撕裂(包括肛门括约肌的撕裂)和困难修补,又可预防因强行保护会阴所造成的皮肤下深部肌肉及盆底筋膜的损伤,引起远期的不良后果,如子宫脱垂,膀胱直肠膨出,加压性尿失禁以及后遗症对妇女健康的危害,甚至丧失正常工作及生活能力. In addition to broken umbilical, the most common surgery in normal childbirth is perineal incision, timely perineal incision are beneficial to maternal and child prognosis in the delivery room, for patients with complications, complications are often given Attention, while the normal delivery of the mother is not enough attention, emphasizing perineal protection but ignored the role of perineal incision in obstetric euthanasia. For women, perineal incision can prevent irregular perineal tear (Including anal sphincter tear) and difficult repair, but also to prevent due to forcibly protect the perineum caused by deep skin muscles and pelvic floor fascia damage, causing long-term adverse consequences, such as uterine prolapse, bladder rectal prolapse Stress urinary incontinence and sequelae harm the health of women and even lose their normal work and life skills.