Broadly speaking, from the technical viewpoint, it works like a classical IVF. First, egg retrieval; second, fertilization in the lab; third, embryo culture; and fourth, embryo transfer.
However, the difference lies in the fourth step: the resulting embryos are not transferred back to the intended mother's uterus, but to the womb of the gestational surrogate.
Read the full article on: Assisted Reproductive Technology (ART) – Techniques Used in Surrogacy ( 68).
Andrea Rodrigo
Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.