In the case of a two-chorionic gestation in which each fetus has its own placenta, it will be necessary to extract the chorionic villi from each of them. Depending on the position of each fetus in the uterus, it may be necessary to use both methods, i.e. transcervical and transabdominal.
How is chorionic biopsy performed in a twin pregnancy?
By Zaira Salvador B.Sc., M.Sc. (embryologist).
Last Update: 02/09/2022
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)