It’s important to keep in mind that, while adoption relationships can change, it is more complicated to increase contact than to decrease it. If a birth mother starts with an open relationship and then decides later that she needs distance, she can do this at any time. However, if an adoption is closed and a birth mother wants more contact, then she has to come to an agreement with the adoptive family. Therefore, it is especially important that a birth mother choosing closed adoption is sure that it is what she wants.
A closed adoption is the type where there is totally no contact between the birth parents and the adoptive parents as well as the child. There is also no classifying information shared between families about each other, thereby effectively cutting possible contact between the two. Before the child joins the family, the adoptive parents are provided with non-identifying data about the child and his or her birth family. Once the adoption is concluded, all records are sealed. These sealed records may or may not become accessible to the adopted child once he or she turns 18, but this is dependent on the signed paperwork and local law.
Closed adoption, not to be confused with sealed records, is an adoption in which the adoptive family and the birthmother never meet and know nothing or very little about one another. With the advent of open adoption, closed adoptions have become the exception in domestic adoption rather than the rule. The term closed adoption is most often used in relation to post-adoption contact, whereas the term sealed records is related to the access of legal documentation surrounding the birth and placement of the adopted child once the adoption is final. It is entirely possible to have a closed adoption and unsealed records or an open adoption with sealed records. The two practices are not mutually exclusive.