[Female fertility preservation: feasibility of emergency IVF for embryo freezing]

With the improvement of the anticancerous treatments, the preservation of the feminine fertility before gonadotoxic treatment tends at present to stand out as a legal obligation, with a duty of information to patients. When emergency IVF can be performed, the cryopreservation of embryos is the best mastered method which offers most chances to patients to obtain a pregnancy after cancer remission thanks to the transfer of frozen embryos. This article proposes an overview about the indications, the feasibility and the ethical and practical limitations of IVF emergency for embryo freezing before gonadotoxic anticancerous treatment.