Donor conceived means a person was created using sperm, eggs, or embryos from someone other than the people raising them. The donor provides the genetic material, but typically has no parental role in the child’s life. This applies whether the donation involved sperm, eggs, or a complete embryo, and it covers a wide range of family structures: heterosexual couples dealing with infertility, same-sex couples, and single parents by choice.
How Donor Conception Works
There are three main types of donor conception, each involving a different kind of genetic contribution. In sperm donation, a donor provides sperm that is used to fertilize the intended mother’s egg. This can happen through intrauterine insemination, where sperm is placed directly in the uterus, or through in vitro fertilization (IVF), where the egg is fertilized in a lab and the resulting embryo is transferred to the uterus.
In egg donation, a donor goes through a process to produce multiple eggs, which are then retrieved and fertilized with sperm from the intended father or a sperm donor. Once the embryos develop for about three days, one or two are transferred to the recipient’s uterus. The person carrying the pregnancy gives birth, but the child’s egg-related genetics come from the donor.
Embryo donation is the third path. Here, a complete embryo, often created by another couple during their own fertility treatment, is donated and transferred to the recipient. The child has no genetic connection to either parent raising them, which makes it biologically similar to adoption but with the experience of pregnancy and birth.
What Donors Are Screened For
In the United States, federal regulations require donors of reproductive tissue to be screened and tested for a specific set of communicable diseases, including HIV, hepatitis B and C, syphilis, chlamydia, and gonorrhea. For anonymous sperm donors, a second round of testing is required at least six months after the donation to catch infections that may not have been detectable at the time of the original sample.
Beyond infectious disease testing, fertility clinics and sperm banks typically screen donors for hereditary conditions and review family medical history. Prospective parents often select donors based on physical traits like height, hair color, and eye color, as well as ethnic background, education, and health profile. The goal is often “phenotypic matching,” where the donor’s appearance resembles the intended parents, though families make these choices for a wide range of personal reasons.
One important gap: the medical and genetic history shared with families is only as thorough as what the donor reports and the clinic collects at the time of donation. It’s a snapshot, not a living document. If a donor develops a hereditary condition years later, there is no universal system in the U.S. that guarantees that information reaches the families who used that donor’s gametes.
Identity and the Donor-Conceived Experience
Being donor conceived is more than a medical fact. It shapes how a person understands their family, their genetics, and themselves. Research published in Fertility and Sterility found that adolescence is a particularly significant period for donor-conceived people, because that’s when identity formation and the drive for independence naturally intensify. Questions like “Where do I come from?” and “Who do I look like?” carry extra weight when half or all of your genetic origins trace to someone you may never have met.
Researchers studying donor-conceived adolescents identified two main psychological patterns. The first is curiosity: actively thinking about donor conception, feeling flexible and accepting about it, and experiencing generally positive emotions around the topic. The second is avoidance: disengaging from the subject and feeling anger, anxiety, or shame about being donor conceived. These patterns aren’t fixed personality traits. They’re closely linked to the quality of a young person’s attachment relationships with their parents. Adolescents who felt securely attached were more likely to explore their donor origins with curiosity, while those with more disorganized attachment patterns were most likely to feel negatively about it.
This doesn’t mean donor conception causes psychological harm. It means that how families handle the topic, how openly they communicate, and how emotionally secure the child feels all play a major role in how the experience lands.
Disclosure: Telling or Not Telling
For decades, the standard advice to parents was to keep donor conception a secret. That has reversed. The professional consensus now favors early, age-appropriate disclosure, with the reasoning that children benefit from understanding their origins rather than discovering them by surprise. Late discovery, especially through a commercial DNA test in adulthood, can feel like a betrayal of trust and is associated with more difficult emotional processing.
The shift toward openness has also put pressure on the practice of anonymous donation. Several countries, including the United Kingdom, New Zealand, Australia, Sweden, and others, have banned anonymous donation entirely. In these jurisdictions, donor-conceived people have the legal right to learn the identity of their donor once they reach adulthood. The United States, by contrast, still permits anonymous donation and has no federal law granting donor-conceived people access to identifying information about their donors.
Finding Biological Relatives
One of the more unexpected aspects of donor conception is the possibility of having many genetic half-siblings. A single sperm donor may contribute to dozens of families, which means a donor-conceived person could have 10, 20, or even 50 or more half-siblings they’ve never met. These half-siblings are sometimes called “diblings,” short for donor siblings.
Several tools exist to help families and donor-conceived people find each other. The Donor Sibling Registry, founded in 2000 by a mother and her donor-conceived son, is one of the largest platforms for facilitating these connections. Many sperm banks also maintain their own sibling registries, organized by donor number, so families who used the same donor can choose to connect. Some families enroll early so their children grow up knowing their diblings. Others wait until the child is old enough to decide for themselves.
The rise of consumer DNA testing has also transformed this landscape. Even when donors were promised anonymity, a DNA test can reveal genetic relatives, effectively ending anonymity whether the donor intended it or not. For donor-conceived people, this has become one of the most common paths to learning about their biological origins.
How Common Is Donor Conception
Exact numbers are hard to pin down because sperm donation through insemination isn’t always tracked the way IVF cycles are. In the United States, data from the Society for Assisted Reproductive Technology shows that in 2022 alone, there were nearly 22,000 treatment cycles using donor eggs or donated embryos, with live birth rates ranging from about 39% to 46% depending on the type of cycle. That’s just one slice of the picture: it doesn’t include the many thousands of sperm donor inseminations performed each year, some of which happen outside of fertility clinics entirely.
Globally, estimates suggest that well over a million people alive today were donor conceived, though the true number is almost certainly higher because of incomplete record-keeping and decades of secrecy. As fertility treatment becomes more accessible and single parenthood by choice grows more common, the donor-conceived population continues to expand steadily.