紧急程度高
很常见-
在婴儿离开子宫期间，正常分娩是人类怀孕的高潮。
预计将在最后一次月经之日起的第37周至第42周之间进行分娩。
最常见的症状是粘液栓的排出，子宫痉挛的出现间隔越来越小，骨盆压力增加，羊水丰富。
自然分娩的过程分为以下几个阶段：子宫颈的消失和扩张，婴儿的下降和分娩以及胎盘的分娩。在医院，将评估是否存在羊膜破裂，子宫出血，子宫颈扩张程度，胎儿的表现以及母亲和胎儿的健康状况。
- Edmund F Funai. Management of normal labor and delivery. UpToDate, Agosto 2016
- World Health Organization, Maternal and Newborn Health/Safe Motherhood Unit. Care in normal birth: a practical guide.
- Berghella V. Evidence-based labor and delivery management. Am J Obstet Gynecol 2008; 199:445.
- Kauffman E. Cervical Dilation on Admission in Term Spontaneous Labor and Maternal and Newborn Outcomes. Obstet Gynecol 2016; 127:481.
- Department of Reproductive Health and Research. Managing complications in pregnancy and childbirth: a guide for midwives and doctors. World Health Organization, Geneva, 2007.
医生 Patricia Sánchez
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