代孕或代理孕母是第三方借代孕母亲生子的过程。代孕可分为两种，第一种是将需求方的精子送入代孕母亲的体内，在体内受精并完成怀孕全过程，这种方法称为人工受精代孕，这种方式的孩子是与代孕母亲有血缘遗传关系的。另一种是将一对不孕夫妻的精子和卵经过试管婴儿技术培养成胚胎，移植在代孕母亲的子宫里，直到出生的过程，孩子的遗传基因和血缘关系都是和不孕不育方一致的，与代孕母亲没有任何关系，以上方法称为试管婴儿代孕。

目前代孕在国际上尚有诸多争议，在许多国家是不合法的。

医学导航: 产科

生理/发育/薄膜

病理/条件源/母体传递, 齐名

A surrogacy arrangement or surrogacy agreement is the carrying of a pregnancy for intended parents. There are two main types of surrogacy, gestational surrogacy (also known as host or full surrogacy) which was first achieved in April 1986 and traditional surrogacy (also known as partial, genetic, or straight surrogacy). In gestational surrogacy, the pregnancy results from the transfer of an embryo created by in vitro fertilization (IVF), in a manner so the resulting child is genetically unrelated to the surrogate. Gestational surrogates are also referred to as gestational carriers. In traditional surrogacy, the surrogate is impregnated naturally or artificially, but the resulting child is genetically related to the surrogate. In the United States, gestational surrogacy is more common than traditional surrogacy and is considered less legally complex.