The Ronald O. Perelman and Claudia Cohen "Center for Reproductive Medicine" - of Weill Cornell Medical College

Egg and Embryo Freezing at CRM

CRM’s elective fertility preservation program assists women who wish to freeze eggs or embryos in order to have children later in life.

Although elective egg freezing is a relatively new option, our Center has already had many patients with successful pregnancies resulting from eggs they froze years earlier.

Before Treatment

The fertility preservation process begins with a consultation with a CRM physician, which includes an in-depth discussion of the patient’s needs and the processes involved. Blood tests and a pelvic ultrasound are performed during this appointment to assess the number of eggs in the ovaries (ovarian reserve).

Ovarian stimulation involves use of injectable hormones. Patients attend an orientation class to learn more about the treatment cycle and to practice the injection technique. Women undertaking an egg freezing treatment are encouraged to meet with one of CRM’s psychologists to discuss the psychological aspects of the treatment.

Treatment and Egg/Embryo Freezing

Each patient has an individualized medication protocol. The purpose of the medications taken during treatment is to safely stimulate the ovaries to produce more mature eggs than are produced in a natural cycle.

Ovarian stimulation takes approximately two weeks. At a time determined by the physician, the patient undergoes the egg retrieval procedure. The retrieved eggs are then frozen using a vitrification (ultrarapid freezing) process. If the patient wishes to freeze embryos, the eggs are fertilized after retrieval. Eggs and embryos are stored in CRM’s Embryology Laboratory.

For more information, contact the Fertility Preservation Coordinator at (646) 962-5450.