代孕知识

代孕是通过人工辅助生育方式,由代孕妈妈(同意替别人怀孕的人)为他人生育子女的行为。代孕母亲可能是孩子的遗传母亲(较传统的代孕形式),或可能是被植入一个与她无关的胚胎。在某些情况下代孕是某些希望获得孩子的家庭的唯一选择

代孕不涉及性关系,因而它是属于人工生殖技术的一种。代孕一般分为四种:一为精子、卵子均来自于夫妻双方,借用代理孕母的子宫;二是精子来自丈夫,卵子由代孕者提供,经体外授精(试管婴儿)后,由代孕者怀孕生育;三是精子来自需求方,卵子由代理孕母提供,经人工授精后,由代孕者怀孕生育;三为卵子由妻子提供,经异质人工授精后通过胚胎移植由代孕者生育。

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