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Kettering Reproductive Medicine Laboratory offers cryopreservation services for both male and female patients to assist in treatment or to preserve fertility.


Cryopreservation of sperm has been successfully performed for decades to preserve viable spermfor use in assisted reproductive procedures at some time in the future. Sperm may be cryopreserved for reasons of timing and convenience, such as when the male partner is unavailable on the day of the procedure. Sperm may also be cryopreserved by necessity for men undergoing radiation, chemotherapy due to cancer or who are undergoing a surgical procedure. Patients may cryopreserve sperm prior to vasectomy as a safety precaution should they desire a child sometime in the future. Cryopreserved sperm can be stored indefinitely with proper storage conditions, however not all sperm will survive the freeze and thaw process. For this reason, it may be advantageous to freeze multiple semen specimens to ensure an adequate supply is available when needed. Cryopreserved sperm may be stored for a short period here at KRM while undergoing treatment or can be shipped to a long-term storage facility for extended storage.

Egg (Oocytes)

Kettering Reproductive Medicine is pleased to offer oocyte(egg) cryopreservation to our list of reproductive services. Kettering Reproductive Medicine offers new technologies (vitrification) that result in improved survival and success utilizing cryopreserved/ thawed oocytes in future in vitro fertilization (IVF) cycles. Vitrification involves ultra-rapid cooling to solidify the oocytes into a glass-like state without the formation of ice crystals which can damage cells during cryopreservation.

Patients wishing to have their oocytes cryopreserved will undergo ovarian stimulation similar to standard IVF patients and at the completion of which will undergo an oocyte retrieval procedure to harvest the oocytes. The oocytes will then undergo vitrification and will be stored in cryo-storgage until needed. At the request of the patient, oocytes will be thawed and will undergo intra-cytoplasmic sperm injection with their partner's sperm to assist with fertilization.

Resulting embryos will be cultured and eventually a select number of embryos will be transferred to the patient's uterus to establish a pregnancy as is typical for conventional IVF cycles.

This technology allows KRM to assist patients receiving chemotherapy or radiotherapy for cancer or other diseases, patients who cannot or wish not to cryopreserve embryos, and potentially for elective cryopreservation to delay childbearing.