Adoption is unique to each situation. It is a relationship, just as other relationships. Adoptions these days can be custom-fit in each case. This means that a birth mother can choose, along with the adoptive parents, what type of relationship will work best for them.
What is it that birth mothers need? It’s different for everyone, but one common need is to know that they are loved and appreciated. This may mean a completely open adoption for some; while for others it may mean just the occasional contact. It’s important to create your adoption relationship in a way that will work for your unique situation. Then, through the years, the relationship changes.