Reproductive techniques allow people to realise their desire to become parents; however, these techniques are expensive and the biological material of other humans is needed to fulfil this desire. This generates several situations: biocapitalism, the mercantilisation and instrumentalisation of the body and socio-economic gaps; it also implies the exercise and possible violation of reproductive rights, the right to identity (which includes the right to a name, filiation, knowledge of biological origin and nationality), the right to privacy, the right to family unity, among others. On the other hand, in some cases of surrogacy, the pregnant women become attached to the child, who is taken from their arms because there is a prior agreement. In other cases, the children are born with pathologies and the contracting partners do not want them; then, as the agreement has no legal framework, the...