分娩

分娩与助产

医学上将分娩分成三个阶段：

1.宫颈扩张期
2.胎儿娩出期
3.胎盘娩出期

下面我们分别讨论分娩的这三个时期。

Birth

Labor and Delivery

Doctors divide the process of childbirth into three stages:

1. the gradual dilation of the cervix,
2. the actual delivery of the baby into the world, and
3. the delivery of the placenta or afterbirth.

Using this medical classification, we now discuss each of the stages separately.