When resorting to egg donation, it is of vital importance to know the legislation of the corresponding country in which the treatment is to be carried out, as each destination has its own requirements.
In some countries, egg donors have to remain anonymous, which is the case of Spain for example. In anonymous egg donation programms, it is not possible for future parents to get to know their egg donors nor to receive any personal information about her. For this reason, only general characteristics are made public like eye color or height, among other things.
However, countries such as the U.S. allow for a public donation in which parents may get information about their donor and even get to know her in person.