What Is an Open-ID Egg Donor?
Learn what an open-ID egg donor is, when identifying information may become available, how open-ID differs from known and nonidentified donation, and what future contact really means.
An open-ID egg donor is someone who agrees that their identifying information may become available to a donor-conceived person later, usually once that person reaches adulthood.
The intended parent may not know the donor personally when treatment takes place. They may select her through a clinic, egg bank, or donor program using a profile containing information about her health, appearance, family background, education, personality, and other characteristics.
The difference is that the donor's identity is not intended to remain permanently unavailable.
ASRM describes these arrangements as open-identity donation: identifying information can potentially be released to donor-conceived offspring at a specified age, often the age of majority.
That sounds straightforward, but there are several important details to understand.
Open-ID does not usually mean you meet the donor now
One of the easiest misunderstandings is assuming that “open” means the intended parents and donor have an open relationship from the beginning.
Usually, it does not.
An open-ID donor may still be recruited through a donor program and may have no direct communication with the intended parents.
The intended parents choose from her profile, treatment proceeds, and identifying information is handled according to the program's rules.
Later, the donor-conceived person may have the option to request the donor's identity.
So open-ID is mainly about future access to identity, not necessarily present-day contact.
How is an open-ID donor different from a known donor?
With a known or identified donor, you know who the donor is before treatment.
She might be a friend, sister, acquaintance, or someone you meet specifically while searching for a donor.
You can potentially speak directly, ask questions, and discuss the kind of future relationship everyone wants.
With an open-ID donor, the donor's identity may remain private from the intended parents during treatment, with identifying information becoming available to the donor-conceived person later.
The difference is essentially timing.
Known donor: identity is known from the beginning.
Open-ID donor: identity can become available later under defined rules.
Both models preserve more possibility for future information than traditional nonidentified donation, but they are not the same arrangement.
How is open-ID different from an anonymous donor?
“Anonymous donor” is still commonly used, but professional terminology is changing.
ASRM now recommends nonidentified donor instead of “anonymous donor” because permanent anonymity can no longer be realistically guaranteed. Consumer DNA databases may allow donors or donor-conceived people to identify genetic relatives even when the original program does not release identifying information.
A nonidentified donor arrangement generally means the program does not intend to disclose identifying information.
An open-ID arrangement specifically creates a pathway through which identifying information may become available later.
That distinction can be very important to families who want their child to have the option of learning who the donor is.
What information might become available?
This depends entirely on the program and jurisdiction.
Identifying information might include things such as:
- the donor's full name;
- date of birth;
- place or country of birth;
- last known contact information.
Other information may already be available before identity release.
A donor profile may include physical characteristics, ancestry, education, interests, family medical history, personal descriptions, and reasons for donating.
The important thing is not to assume that every open-ID program releases exactly the same information.
Before choosing a donor, ask what will actually become available and when.
At what age can the child request the donor's identity?
There is no universal rule.
In some programs, identity information becomes available when the donor-conceived person turns 18. Other programs may use a different age or have different procedures.
In the United States, donor programs vary widely in how they handle identity release and contact. ASRM notes that U.S. sperm, egg, and embryo donation programs differ substantially in whether they release identifying information or facilitate contact.
European rules also differ from country to country. ESHRE notes that some countries maintain donor anonymity while others allow donor-conceived people to trace their donor once they reach a defined age, commonly adulthood.
So “open-ID” should always be followed by another question:
Open at what age, and under what rules?
The UK effectively uses an identity-release system
The UK provides a useful example of how identity-release donation can work at a national level.
For most egg, sperm, and embryo donations made from 1 April 2005 onward, donor-conceived people can request identifying information about their donor once they turn 18. This can include the donor's full name, date and place of birth, and last known address.
At age 16, eligible donor-conceived people can already request nonidentifying information such as physical description, ethnicity, medical information, and whether the donor had children.
The UK model is established by regulation rather than simply being an optional label used by a private donor program.
Other countries handle identity very differently.
Open-ID does not guarantee a meeting
This is probably the most important limitation to understand.
If your child eventually receives the donor's identity, that does not mean the donor is obligated to meet them.
The donor may be open to contact. She may prefer occasional communication. She may not respond.
Her circumstances and feelings may also change over the years between donation and adulthood.
Under the UK system, for example, eligible donor-conceived adults can obtain identifying information and decide whether to make contact themselves. The donor is not automatically placed into a relationship with them.
So it is better to think of open-ID as preserving an opportunity for identification, not guaranteeing a relationship.
Identity and contact are separate choices
A donor program may offer several different levels of openness.
A donor might agree to identity release at adulthood but no contact before then. Another donor might permit anonymous messages through an intermediary. Some may be willing to communicate with intended parents. Others may eventually welcome direct contact with the donor-conceived adult.
That is why donor profiles should ideally distinguish between identity status and contact preference.
Someone can be open-ID while preferring no ongoing relationship. Likewise, a known donor might have limited future contact even though her identity has always been known.
Why do intended parents choose open-ID donors?
One common reason is to preserve options for the child.
An intended parent may not personally feel a need to know the donor's identity but may recognize that their future child could feel differently.
The child might eventually want to know:
- Who is my donor?
- What does she look like as an adult?
- Where did her family come from?
- Do we share interests or characteristics?
- Has anything changed in her medical history?
- Do I have genetic relatives through her?
An open-ID arrangement creates a formal path toward answering at least some of those questions.
Some parents also value access to future medical information
Medical history does not stop changing when eggs are retrieved.
Years later, the donor or one of her close relatives might develop a condition with possible genetic relevance.
A program with good long-term records and contact mechanisms may be better positioned to communicate important updates.
An open-ID arrangement does not automatically guarantee better medical follow-up, but a system that maintains identifiable donor records can make future communication more feasible.
Ask the donor program specifically how medical updates are handled.
DNA testing has changed what “anonymous” means
Open-ID once represented a particularly distinct choice: select a donor whose identity may eventually be revealed instead of one who would remain anonymous.
Consumer genetic testing has blurred that distinction.
A donor-conceived person can submit DNA to a commercial genealogy service and potentially identify close genetic relatives.
The donor herself does not even need to have used the service. A sibling, parent, cousin, or other relative may provide enough information to help establish her identity.
ASRM now explicitly acknowledges this reality in recommending the term “nonidentified” rather than “anonymous.” ESHRE has likewise noted that large consumer DNA databases mean donor anonymity can no longer be guaranteed in practice.
That makes discussions about future identification increasingly important regardless of which donor type you choose.
Does open-ID mean the donor becomes a parent?
No.
Donor identity and legal parenthood are different questions.
An open-ID donor agrees to the possible future release of identifying information under the applicable program or legal framework. That does not, by itself, make her a parent or give her parenting responsibilities.
The exact legal position depends on where treatment takes place and the applicable law, so families using cross-border or unusual arrangements should confirm the rules that apply to them.
Open identity describes access to information, not parental status.
Is an open-ID donor medically different?
No.
Open-ID refers to identity arrangements, not medical quality.
An open-ID donor should still undergo appropriate egg donor screening.
That may include:
- personal and family medical history;
- infectious-disease testing;
- genetic carrier screening;
- ovarian-reserve evaluation;
- physical and reproductive assessment;
- counseling.
A nonidentified, open-ID, or known donor can each be medically appropriate—or unsuitable.
Identity status should therefore be considered separately from health and genetic screening.
What should you ask before choosing an open-ID donor?
Before selecting a donor, find out exactly what the program means by open-ID.
Useful questions include:
- When can my child request identifying information?
- Exactly what information will be released?
- Can I access the donor's identity before that point?
- Can my child contact the donor?
- Does the program facilitate contact?
- Is the donor required to respond?
- How are current donor contact details maintained?
- Can the donor change her mind about identity release?
- How are future medical updates handled?
- Are donor-conceived siblings able to find one another?
The answers may differ significantly between programs even when both describe their donors as “open-ID.”
Consider whether the donor understands future identification
Open-ID donation is a long-term commitment.
Someone donating eggs today may potentially hear from a donor-conceived adult almost two decades later.
A donor should therefore understand that her future life may include contact she cannot fully anticipate today.
It may also affect her own family.
A future spouse, children, siblings, or parents could eventually learn about the donation.
Proper counseling can help donors think through these implications before agreeing.
Open-ID can be a middle ground
For some intended parents, a known donor feels too personally involved.
At the same time, they may feel uncomfortable choosing an arrangement designed to keep the donor's identity unavailable forever.
Open-ID can provide a middle ground.
The intended parents can build their family without necessarily establishing a personal relationship with the donor. At the same time, the child retains a formal pathway toward learning who the donor is later.
For some families, that balance feels appropriate.
Where Banbino fits
Banbino can help intended parents explore egg donors according to identity preferences alongside characteristics such as background, physical traits, location, and family-building intentions.
For someone who wants more openness, an identified donor found directly through the platform may offer a different route from a traditional open-ID program because the donor and intended parent can potentially know one another from the beginning.
That distinction should remain clear.
Open-ID generally means identity becomes available later.
Known or identified donation means the donor's identity is known during the family-building process.
Banbino can help with discovering and comparing potential donors, while the fertility clinic still handles medical assessment, screening, stimulation, and egg retrieval.
Is an open-ID egg donor right for you?
That depends less on whether open-ID is objectively “better” and more on what options you want to preserve.
You may prefer knowing the donor from the beginning. You may prefer greater separation and choose a nonidentified donor where legally available. Or you may want your child to have the possibility of discovering the donor's identity later without establishing a relationship today.
If open-ID appeals to you, focus on the details rather than the label.
Find out when identity becomes available, what information is released, whether contact is facilitated, and what happens if the donor or child wants—or does not want—a relationship later.
That is what ultimately determines how open an open-ID arrangement really is.