About Oocyte Cryopreservation

At this hospital, we are happy to provide cryopreservation services.
We have a long track record in freezing technology as well as long-term storage and management of frozen oocytes, both for oocyte cryopreservation and in other kinds of fertility treatment.
If you are thinking of preparing for your future pregnancy, please contact us.

Process of Oocyte Cryopreservation at Oak Clinic

1. Inducing Ovulation In order to collect oocytes efficiently, we use oral medicine and injections to get multiple oocytes. There is also a way to wait for the oocytes to grow naturally without inducing ovulation at all.
2. Oocyte Pick-Up In an outpatient surgery, a needle is inserted into the ovary to collect oocytes.
3. Cryopreservation The oocytes are cryopreserved in liquid nitrogen by the rapid vitrification method.

Freezing and Thawing of Oocytes

  • 1. Oocytes before freezing

  • 2. Dehydrated and concentrated oocyte

  • 3. Recovered oocyte after thawing.

【Reference】Process of pregnancy with frozen oocytes

1.Thawing of oocytes & semen collection → 2.In-vitro fertilization → 3.Embryo transfer → 4.Pregnancy

※Separate fees are required.

Cost of Cryopreservation

Item Price Before Tax Price With Tax
Ovulation induction, ultrasonography, medical examination, blood test, etc.
Includes the price of GnRHa preparation (buserelin) and fertility medicine (price varies depending on the type) to prepare for oocyte pick-up.
approx. ¥30,000 approx. ¥33,000
Oocyte Pick-Up(OPU) Cycle management fee
※ Occurs when you contact us on the first day of menstruation
¥20,000 ¥22,000
Basic charge
※Not required if oocytes cannot be collected
¥70,000 ¥77,000
Per oocyte fee
¥4,000 ¥4,400
Cancellation fee
¥40,000 ¥44,000
Cryopreservation process Base fee ¥35,000 ¥38,500
Per cryotop ※1 ¥7,000 ¥7,700
Frozen storage rental The monthly unit price varies depending on the quantity and period.
Click here for the frozen storage price list of oocytes >>
Oocyte Processing Fees (At time of OPU) Base charge
※Not required if oocytes cannot be collected
¥20,000 ¥22,000
Per unit   ¥1,000 ¥1,100
Frozen oocyte thawing fee Base fee ¥10,000 ¥11,000
Per cryotop ※2 ¥10,000 ¥11,000
-Per Unit


¥ 5,500
Frozen storage extension fee ¥4,000/Extension ¥4,400/Extension

※1)cryotop can store 3 oocytes.
※2)Thawing is done to a whole cryotop.
※The price including tax is listed based on an obligation to display the total amount. Real calculation may differ.
※Prices are subject to change without notice.
※A separate fee is required for support outside normal business hours.

Oocyte freezing requires a prepayment.

Prepayment amount depends on protocol.

Prepayment: ¥250,000 ~ ¥300,000

Cost Simulation

The cost of freezing oocytes depends on the ovulation induction method, the number of oocytes that can be collected, and other factors. Please use the provided cost simulation.