If more eggs are normally fertilized and divide to form healthy-looking embryos than is advisable to replace during the treatment cycle, the additional embryos can be frozen and stored for replacement in the future. Once frozen, the embryos can be maintained in storage for several years, but we encourage replacement within 2 years of fertilization whenever possible. The consent form for embryo freezing requests that you indicate how you would like to dispose of the frozen embryo(s) in case of divorce and death. The options include donating the embryos anonymously for the benefit of another infertile patient or discarding them. There is an annual fee for your embryos to remain in storage.