Glossary · Definition · v2026.3
What Is a Gestational Surrogate?
A gestational surrogate is a person who carries a pregnancy created using an embryo that is not genetically related to them.
Gestational vs Traditional Surrogacy
In gestational surrogacy, the embryo is created using eggs and sperm from the intended parents or donors. The surrogate has no genetic connection to the child. In traditional surrogacy, the surrogate provides the egg and is genetically related to the child. Gestational surrogacy is far more common in modern practice and is the only form permitted in most U.S. states that regulate surrogacy.
Medical Process
The gestational surrogate undergoes medical and psychological screening before being cleared for an embryo transfer. Her uterine lining is prepared with hormones (estrogen and progesterone) to synchronize with the embryo. After transfer, she continues progesterone supplementation during early pregnancy. The surrogate receives prenatal care throughout the pregnancy and delivers the child, with legal parentage established through pre-birth or post-birth court orders depending on the state.
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This content defines terminology for educational orientation. It does not constitute medical advice.
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