An adoption where there is no contact between birth parents and adoptive parents. Also called traditional adoption.

Neither birth parents nor extended biological family have any contact with the adoptive child or adoptive family. They have no information as to the identity of the adoptive family.

A closed adoption is one in which their is no relationship of any type between the adoptive parents and the birth parents.

An adoption that involves total confidentiality and sealed records.

An adoption in which basic medical and social history is shared through an agency or other third-party. Generally, contact between birth and adoptive family before and after adoption is prohibited

an adoption in which birth and adoptive families have no contact and know only non-identifying information about each other.

adoption in which the adoptive parents and the birth parents have no identifying information about each other.

An arrangement in which an adopted child has no contact with and/or no knowledge of the birth family.

adoption in which confidentiality of both adoptive parents and birth parents are protected under the law; the courts seal all records.

Note: This article refers mainly to closed adoption in the United States. If you have further information on closed adoption in other countries, or international closed adoption (e.g. South Korea -- USA) please help Wikipedia by contributing.