Fertility Preservation: Questions to Discuss Before Delaying Pregnancy
Social and medical egg freezing: optimal ages, number of oocytes recommended, and vitrification technology.
Reviewed by Dr. Dileep Kumar H R, MBBS, DGO, DRM
October 2026 · Evidence-Based Healthcare

Fertility preservation gives individuals and couples autonomy over their reproductive timeline, whether due to career commitments, personal readiness, or medical treatments (such as cancer chemotherapy).
Because egg quality and chromosomal normality are tied to the age at which eggs are vitrified, freezing oocytes in one's late 20s or early 30s locks in biological potential.
The process is identical to the first half of an IVF cycle: approximately 10 to 12 days of hormonal stimulation followed by an ultrasound-guided egg retrieval under gentle sedation.
The retrieved mature eggs are vitrified in liquid nitrogen at -196°C and stored securely until you decide to use them in the future.
Considering a Second Opinion on Your Reports?
Bring your previous cycle logs, scans, and tests for an unhurried, independent review with Dr. Dileep Kumar H R.
Frequently Asked Questions
Statistical models recommend freezing between 10 to 15 mature oocytes for women under 35, and 15 to 20 for women between 35 and 38.
