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Embryo transfer - Definition


Embryo transfer refers to the medical procedure performed in relation to assisted reproductive technology (ART). It consists of reimplanting a an ovum that has been fertilized outside of the body into the uterus, once the first stages of cellular division have already initiated. There are two different techniques that can be used. Standard in vitro fertilization (IVF) consists of transferring the embryo once several oocytes have been extracted by needle from the ovarian follicles and put into contact with spermatozoa. ICSI (ICSI) in vitro fertilization, which stands for intracytoplasmic sperm injection, consists of performing the same extraction procedure, but then injecting a spermatozoon directly into the oocyte. These techniques are used in cases where a couple have difficulty in having children, following different tests to analyze the cause of infertility, or in cases where other ART techniques have not succeeded.