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大量临床实践证实,胎膜早破危害母子安全,须及早进行预防。妇女受孕以后,子宫内由羊膜及绒毛膜紧密粘连,形成一封闭的囊,称为羊毛囊。囊内有胎儿和羊水,在正常分娩过程中,随着子宫收缩的逐渐增强,子宫口逐渐扩大,胎膜倘若不能承受由羊水传来的压力,则会发生破裂,称为胎膜自破。正常情况下一般发生在子宫口开大至6～10厘米时。在未开始正式临产前发生胎膜破裂称胎膜早破。
A large number of clinical practice confirmed that premature rupture of membranes jeopardize the safety of mother and child, must be prevented as soon as possible. After the pregnancy of women, the uterus by the amnion and chorion closely together to form a closed capsule, called the sheep follicles. Fetal and amniotic fluid within the normal delivery process, with the gradual increase in uterine contraction, cervix gradually expanded, if the fetus can not withstand the pressure from the amniotic fluid, it will rupture, known as the fetal membrane self-break. Under normal circumstances generally occur in the cervix open up to 6 to 10 cm. Preterm labor did not begin before the rupture of membranes known as premature rupture of membranes.