When families build through egg, sperm, or embryo donation, one of the earliest decisions is also one of the most consequential: will the donor be known or anonymous? The terms sound like a simple matter of preference — whether you meet the person or not. Legally, they mark a far more significant divide, and misunderstanding it is one of the more common ways families create problems for themselves before a child is ever conceived.
The distinction is about legal relationship, not acquaintance
“Known” and “anonymous” describe how much identifying information passes between the parties. But the legal question underneath is different: has parentage been clearly and enforceably severed, and are the intended parents the child’s sole legal parents?
That severance does not happen automatically because someone signed up through a clinic or an agency. It happens through a properly drafted donation agreement that addresses parentage, waives the donor’s rights and obligations, and is executed before the donation proceeds. Without it, the label “anonymous” offers far less protection than families assume.
Why “anonymous” is no longer what it once was
For decades, anonymity was treated as permanent. That assumption has quietly collapsed. Direct-to-consumer DNA testing and the databases behind it mean that a donor who was anonymous at the time of donation can be identified years later by a curious donor-conceived person with a saliva kit. This is not a hypothetical; it is routine.
The practical consequence: anonymity is better understood as a preference about contact, not a guarantee about identity. A donation agreement should be written for the world as it is — where identity may surface regardless of intent — rather than the world as it was. Provisions about future contact, disclosure, and expectations matter precisely because secrecy can no longer be promised.
Known donation carries its own legal weight
Choosing a known donor — a friend, a relative, someone found independently — does not make the legal work lighter. It often makes it heavier. When the parties have an existing relationship, the risk of later confusion about roles, rights, and expectations rises, not falls. Courts have seen known donors later assert parental claims, and intended parents later seek support obligations, precisely because the arrangement felt informal and the paperwork was treated as a formality.
A known donation agreement does the opposite of informal: it states, in writing and before conception, that the donor is a donor and not a parent, and that everyone understands the arrangement identically. The closer the personal relationship, the more that clarity protects it.
Where the medical and legal pieces meet
Donation sits at the intersection of medicine and law, and the two do not always speak the same language. Clinic consent forms are not the same as a legal donation agreement — a distinction I pay close attention to, given a medical background that predates my legal practice. A signature on a clinic’s intake paperwork addresses the medical procedure; it does not reliably resolve legal parentage. Families sometimes arrive believing the clinic “handled it,” only to learn that the document they signed was never designed to do what a donation agreement does. The safest arrangements are the ones where the medical process and the legal process are coordinated deliberately, not assumed to overlap.
The takeaway
Known versus anonymous is not a spectrum from “less legal” to “more legal.” Both require a properly drafted agreement executed before the donation, and both are shaped by the reality that identity is increasingly discoverable. The decision worth making carefully is not just whether you’ll meet the donor — it’s whether the legal foundation under your family is built to hold, whichever path you choose.
If you’re considering egg, sperm, or embryo donation and want to understand how the law applies to your situation, that conversation is best had before the process begins. At Shulman Family Law Group, we focus on surrogacy, adoption, and third-party reproduction, and we help intended parents and donors get the legal foundation right from the start.