The Microbiome in Subfertility and Assisted Reproductive Technologies (ART)

When entering the in-vitro fertilization/intracytoplasmatic sperm injection 4 samples will be harvested: a rectal swab, a cervical swab, a vaginal swab and an intra-uterine sample using an empty embryo catheter. After the ovarian stimulation treatment, the same patients will be sampled two more times: once at the moment of oocyte retrieval (rectal, cervical, vaginal and intra-uterine samples) and again just before the embryo transfer (at this stage, the embryo culture medium will be harvested, as well as an intra-uterine sample using the tip of an empty embryo inner catheter before the embryo transfer and a rectal sample)